Home / 687,419,423.48-948,719,582.58-386,054,262.44

Finding the Fourth Proportional to 687,419,423.48, 948,719,582.58 and 386,054,262.44

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Solution

The fourth proportional to 687,419,423.48, 948,719,582.58 and 386,054,262.44 is: 532,800,247.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,419,423.48 : 948,719,582.58 = 386,054,262.44 : x
  2. Step 2: Convert to fraction form
    687,419,423.48/948,719,582.58 = 386,054,262.44/x
  3. Step 3: Cross multiply
    687,419,423.48x = 948,719,582.58 × 386,054,262.44
  4. Step 4: Simplify right side
    687,419,423.48x = 366,257,238,715,306,560
  5. Step 5: Solve for x
    x = 366,257,238,715,306,560/687,419,423.48
  6. Step 6: Final answer
    x = 532,800,247.13

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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.