Home / 390,207,380.92-585,311,324.10-99,096,335.80

Finding the Fourth Proportional to 390,207,380.92, 585,311,324.10 and 99,096,335.80

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Solution

The fourth proportional to 390,207,380.92, 585,311,324.10 and 99,096,335.80 is: 148,644,567.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,207,380.92 : 585,311,324.10 = 99,096,335.80 : x
  2. Step 2: Convert to fraction form
    390,207,380.92/585,311,324.10 = 99,096,335.80/x
  3. Step 3: Cross multiply
    390,207,380.92x = 585,311,324.10 × 99,096,335.80
  4. Step 4: Simplify right side
    390,207,380.92x = 58,002,207,520,556,232
  5. Step 5: Solve for x
    x = 58,002,207,520,556,232/390,207,380.92
  6. Step 6: Final answer
    x = 148,644,567.88

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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.