Home / 1,277,160,775.30-1,915,741,162.95-932,787,007.30

Finding the Fourth Proportional to 1,277,160,775.30, 1,915,741,162.95 and 932,787,007.30

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Solution

The fourth proportional to 1,277,160,775.30, 1,915,741,162.95 and 932,787,007.30 is: 1,399,180,510.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,277,160,775.30 : 1,915,741,162.95 = 932,787,007.30 : x
  2. Step 2: Convert to fraction form
    1,277,160,775.30/1,915,741,162.95 = 932,787,007.30/x
  3. Step 3: Cross multiply
    1,277,160,775.30x = 1,915,741,162.95 × 932,787,007.30
  4. Step 4: Simplify right side
    1,277,160,775.30x = 1,786,978,466,149,552,128
  5. Step 5: Solve for x
    x = 1,786,978,466,149,552,128/1,277,160,775.30
  6. Step 6: Final answer
    x = 1,399,180,510.95

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Double scale
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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.