Home / 431,160,274.43-646,745,543.87-120,248,973.78

Finding the Fourth Proportional to 431,160,274.43, 646,745,543.87 and 120,248,973.78

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Solution

The fourth proportional to 431,160,274.43, 646,745,543.87 and 120,248,973.78 is: 180,374,892.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,160,274.43 : 646,745,543.87 = 120,248,973.78 : x
  2. Step 2: Convert to fraction form
    431,160,274.43/646,745,543.87 = 120,248,973.78/x
  3. Step 3: Cross multiply
    431,160,274.43x = 646,745,543.87 × 120,248,973.78
  4. Step 4: Simplify right side
    431,160,274.43x = 77,770,487,949,430,448
  5. Step 5: Solve for x
    x = 77,770,487,949,430,448/431,160,274.43
  6. Step 6: Final answer
    x = 180,374,892.03

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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.