Home / 423,738,425.60-636,013,545.60-219,413,139.20

Finding the Fourth Proportional to 423,738,425.60, 636,013,545.60 and 219,413,139.20

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Solution

The fourth proportional to 423,738,425.60, 636,013,545.60 and 219,413,139.20 is: 329,329,888.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,738,425.60 : 636,013,545.60 = 219,413,139.20 : x
  2. Step 2: Convert to fraction form
    423,738,425.60/636,013,545.60 = 219,413,139.20/x
  3. Step 3: Cross multiply
    423,738,425.60x = 636,013,545.60 × 219,413,139.20
  4. Step 4: Simplify right side
    423,738,425.60x = 139,549,728,613,818,352
  5. Step 5: Solve for x
    x = 139,549,728,613,818,352/423,738,425.60
  6. Step 6: Final answer
    x = 329,329,888.87

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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.