Home / 212,488,821.90-293,231,593.50-118,406,934.22

Finding the Fourth Proportional to 212,488,821.90, 293,231,593.50 and 118,406,934.22

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Solution

The fourth proportional to 212,488,821.90, 293,231,593.50 and 118,406,934.22 is: 163,399,908.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,488,821.90 : 293,231,593.50 = 118,406,934.22 : x
  2. Step 2: Convert to fraction form
    212,488,821.90/293,231,593.50 = 118,406,934.22/x
  3. Step 3: Cross multiply
    212,488,821.90x = 293,231,593.50 × 118,406,934.22
  4. Step 4: Simplify right side
    212,488,821.90x = 34,720,654,002,780,280
  5. Step 5: Solve for x
    x = 34,720,654,002,780,280/212,488,821.90
  6. Step 6: Final answer
    x = 163,399,908.25

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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.