Home / 431,527,221.90-647,353,818.45-140,344,793.10

Finding the Fourth Proportional to 431,527,221.90, 647,353,818.45 and 140,344,793.10

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Solution

The fourth proportional to 431,527,221.90, 647,353,818.45 and 140,344,793.10 is: 210,537,674.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,527,221.90 : 647,353,818.45 = 140,344,793.10 : x
  2. Step 2: Convert to fraction form
    431,527,221.90/647,353,818.45 = 140,344,793.10/x
  3. Step 3: Cross multiply
    431,527,221.90x = 647,353,818.45 × 140,344,793.10
  4. Step 4: Simplify right side
    431,527,221.90x = 90,852,737,712,860,208
  5. Step 5: Solve for x
    x = 90,852,737,712,860,208/431,527,221.90
  6. Step 6: Final answer
    x = 210,537,674.34

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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.