Home / 2,659,403,897.80-3,989,105,846.70-1,281,908,825.80

Finding the Fourth Proportional to 2,659,403,897.80, 3,989,105,846.70 and 1,281,908,825.80

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Solution

The fourth proportional to 2,659,403,897.80, 3,989,105,846.70 and 1,281,908,825.80 is: 1,922,863,238.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,659,403,897.80 : 3,989,105,846.70 = 1,281,908,825.80 : x
  2. Step 2: Convert to fraction form
    2,659,403,897.80/3,989,105,846.70 = 1,281,908,825.80/x
  3. Step 3: Cross multiply
    2,659,403,897.80x = 3,989,105,846.70 × 1,281,908,825.80
  4. Step 4: Simplify right side
    2,659,403,897.80x = 5,113,669,991,935,111,168
  5. Step 5: Solve for x
    x = 5,113,669,991,935,111,168/2,659,403,897.80
  6. Step 6: Final answer
    x = 1,922,863,238.70

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.