Home / 2,165,468,708.52-2,988,269,498.16-1,225,651,172.76

Finding the Fourth Proportional to 2,165,468,708.52, 2,988,269,498.16 and 1,225,651,172.76

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Solution

The fourth proportional to 2,165,468,708.52, 2,988,269,498.16 and 1,225,651,172.76 is: 1,691,354,855.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,165,468,708.52 : 2,988,269,498.16 = 1,225,651,172.76 : x
  2. Step 2: Convert to fraction form
    2,165,468,708.52/2,988,269,498.16 = 1,225,651,172.76/x
  3. Step 3: Cross multiply
    2,165,468,708.52x = 2,988,269,498.16 × 1,225,651,172.76
  4. Step 4: Simplify right side
    2,165,468,708.52x = 3,662,576,014,942,740,480
  5. Step 5: Solve for x
    x = 3,662,576,014,942,740,480/2,165,468,708.52
  6. Step 6: Final answer
    x = 1,691,354,855.66

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Half scale
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Double scale
Find fourth proportional to 2,165,468,709.52, 2,988,269,499.54 and 1,225,651,173.76
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.