Home / 347,948,221.80-521,839,926.54-129,701,018.28

Finding the Fourth Proportional to 347,948,221.80, 521,839,926.54 and 129,701,018.28

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Solution

The fourth proportional to 347,948,221.80, 521,839,926.54 and 129,701,018.28 is: 194,520,809.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,948,221.80 : 521,839,926.54 = 129,701,018.28 : x
  2. Step 2: Convert to fraction form
    347,948,221.80/521,839,926.54 = 129,701,018.28/x
  3. Step 3: Cross multiply
    347,948,221.80x = 521,839,926.54 × 129,701,018.28
  4. Step 4: Simplify right side
    347,948,221.80x = 67,683,169,851,398,400
  5. Step 5: Solve for x
    x = 67,683,169,851,398,400/347,948,221.80
  6. Step 6: Final answer
    x = 194,520,809.74

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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.