Home / 687,419,402.46-948,719,553.60-386,054,241.42

Finding the Fourth Proportional to 687,419,402.46, 948,719,553.60 and 386,054,241.42

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Solution

The fourth proportional to 687,419,402.46, 948,719,553.60 and 386,054,241.42 is: 532,800,218.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,419,402.46 : 948,719,553.60 = 386,054,241.42 : x
  2. Step 2: Convert to fraction form
    687,419,402.46/948,719,553.60 = 386,054,241.42/x
  3. Step 3: Cross multiply
    687,419,402.46x = 948,719,553.60 × 386,054,241.42
  4. Step 4: Simplify right side
    687,419,402.46x = 366,257,207,585,369,024
  5. Step 5: Solve for x
    x = 366,257,207,585,369,024/687,419,402.46
  6. Step 6: Final answer
    x = 532,800,218.14

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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.