Home / 347,948,224.30-521,839,930.29-129,701,020.78

Finding the Fourth Proportional to 347,948,224.30, 521,839,930.29 and 129,701,020.78

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Solution

The fourth proportional to 347,948,224.30, 521,839,930.29 and 129,701,020.78 is: 194,520,813.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,948,224.30 : 521,839,930.29 = 129,701,020.78 : x
  2. Step 2: Convert to fraction form
    347,948,224.30/521,839,930.29 = 129,701,020.78/x
  3. Step 3: Cross multiply
    347,948,224.30x = 521,839,930.29 × 129,701,020.78
  4. Step 4: Simplify right side
    347,948,224.30x = 67,683,171,642,377,048
  5. Step 5: Solve for x
    x = 67,683,171,642,377,048/347,948,224.30
  6. Step 6: Final answer
    x = 194,520,813.49

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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.