Home / 71,902,785-99,226,193.22-39,307,737

Finding the Fourth Proportional to 71,902,785, 99,226,193.22 and 39,307,737

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Solution

The fourth proportional to 71,902,785, 99,226,193.22 and 39,307,737 is: 54,244,868.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,902,785 : 99,226,193.22 = 39,307,737 : x
  2. Step 2: Convert to fraction form
    71,902,785/99,226,193.22 = 39,307,737/x
  3. Step 3: Cross multiply
    71,902,785x = 99,226,193.22 × 39,307,737
  4. Step 4: Simplify right side
    71,902,785x = 3,900,357,106,602,943
  5. Step 5: Solve for x
    x = 3,900,357,106,602,943/71,902,785
  6. Step 6: Final answer
    x = 54,244,868.35

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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.