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Finding the Fourth Proportional to 625,478,218.01, 863,157,572.15 and 343,225,381.27

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Solution

The fourth proportional to 625,478,218.01, 863,157,572.15 and 343,225,381.27 is: 473,649,726.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,478,218.01 : 863,157,572.15 = 343,225,381.27 : x
  2. Step 2: Convert to fraction form
    625,478,218.01/863,157,572.15 = 343,225,381.27/x
  3. Step 3: Cross multiply
    625,478,218.01x = 863,157,572.15 × 343,225,381.27
  4. Step 4: Simplify right side
    625,478,218.01x = 296,257,586,795,113,344
  5. Step 5: Solve for x
    x = 296,257,586,795,113,344/625,478,218.01
  6. Step 6: Final answer
    x = 473,649,726.34

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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.