Home / 257,547,553.38-386,323,721.40-73,315,023.06

Finding the Fourth Proportional to 257,547,553.38, 386,323,721.40 and 73,315,023.06

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Solution

The fourth proportional to 257,547,553.38, 386,323,721.40 and 73,315,023.06 is: 109,973,215.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,547,553.38 : 386,323,721.40 = 73,315,023.06 : x
  2. Step 2: Convert to fraction form
    257,547,553.38/386,323,721.40 = 73,315,023.06/x
  3. Step 3: Cross multiply
    257,547,553.38x = 386,323,721.40 × 73,315,023.06
  4. Step 4: Simplify right side
    257,547,553.38x = 28,323,332,543,340,948
  5. Step 5: Solve for x
    x = 28,323,332,543,340,948/257,547,553.38
  6. Step 6: Final answer
    x = 109,973,215.32

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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.