Home / 1,165,116,397.86-1,608,243,800.40-927,397,634.76

Finding the Fourth Proportional to 1,165,116,397.86, 1,608,243,800.40 and 927,397,634.76

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Solution

The fourth proportional to 1,165,116,397.86, 1,608,243,800.40 and 927,397,634.76 is: 1,280,113,728.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,165,116,397.86 : 1,608,243,800.40 = 927,397,634.76 : x
  2. Step 2: Convert to fraction form
    1,165,116,397.86/1,608,243,800.40 = 927,397,634.76/x
  3. Step 3: Cross multiply
    1,165,116,397.86x = 1,608,243,800.40 × 927,397,634.76
  4. Step 4: Simplify right side
    1,165,116,397.86x = 1,491,481,496,608,393,728
  5. Step 5: Solve for x
    x = 1,491,481,496,608,393,728/1,165,116,397.86
  6. Step 6: Final answer
    x = 1,280,113,728.85

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Half scale
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Double scale
Find fourth proportional to 1,165,116,398.86, 1,608,243,801.78 and 927,397,635.76
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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.