Home / 431,036,630.13-646,560,543.91-143,822,294.13

Finding the Fourth Proportional to 431,036,630.13, 646,560,543.91 and 143,822,294.13

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Solution

The fourth proportional to 431,036,630.13, 646,560,543.91 and 143,822,294.13 is: 215,735,309.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,036,630.13 : 646,560,543.91 = 143,822,294.13 : x
  2. Step 2: Convert to fraction form
    431,036,630.13/646,560,543.91 = 143,822,294.13/x
  3. Step 3: Cross multiply
    431,036,630.13x = 646,560,543.91 × 143,822,294.13
  4. Step 4: Simplify right side
    431,036,630.13x = 92,989,820,719,076,800
  5. Step 5: Solve for x
    x = 92,989,820,719,076,800/431,036,630.13
  6. Step 6: Final answer
    x = 215,735,309.30

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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.