Home / 51,893,376-71,600,978.13-30,981,338.70

Finding the Fourth Proportional to 51,893,376, 71,600,978.13 and 30,981,338.70

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Solution

The fourth proportional to 51,893,376, 71,600,978.13 and 30,981,338.70 is: 42,747,154.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,893,376 : 71,600,978.13 = 30,981,338.70 : x
  2. Step 2: Convert to fraction form
    51,893,376/71,600,978.13 = 30,981,338.70/x
  3. Step 3: Cross multiply
    51,893,376x = 71,600,978.13 × 30,981,338.70
  4. Step 4: Simplify right side
    51,893,376x = 2,218,294,154,696,822.50
  5. Step 5: Solve for x
    x = 2,218,294,154,696,822.50/51,893,376
  6. Step 6: Final answer
    x = 42,747,154.37

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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.