Home / 19,378,718.10-29,068,077.15-13,639,155.30

Finding the Fourth Proportional to 19,378,718.10, 29,068,077.15 and 13,639,155.30

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Solution

The fourth proportional to 19,378,718.10, 29,068,077.15 and 13,639,155.30 is: 20,458,732.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,378,718.10 : 29,068,077.15 = 13,639,155.30 : x
  2. Step 2: Convert to fraction form
    19,378,718.10/29,068,077.15 = 13,639,155.30/x
  3. Step 3: Cross multiply
    19,378,718.10x = 29,068,077.15 × 13,639,155.30
  4. Step 4: Simplify right side
    19,378,718.10x = 396,464,018,521,231.38
  5. Step 5: Solve for x
    x = 396,464,018,521,231.38/19,378,718.10
  6. Step 6: Final answer
    x = 20,458,732.95

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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.