Home / 431,921,292.60-648,033,104.34-125,231,809.08

Finding the Fourth Proportional to 431,921,292.60, 648,033,104.34 and 125,231,809.08

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Solution

The fourth proportional to 431,921,292.60, 648,033,104.34 and 125,231,809.08 is: 187,891,542.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,921,292.60 : 648,033,104.34 = 125,231,809.08 : x
  2. Step 2: Convert to fraction form
    431,921,292.60/648,033,104.34 = 125,231,809.08/x
  3. Step 3: Cross multiply
    431,921,292.60x = 648,033,104.34 × 125,231,809.08
  4. Step 4: Simplify right side
    431,921,292.60x = 81,154,358,000,226,608
  5. Step 5: Solve for x
    x = 81,154,358,000,226,608/431,921,292.60
  6. Step 6: Final answer
    x = 187,891,542.72

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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.