Home / 331,857,502.80-497,786,254.20-86,193,979.80

Finding the Fourth Proportional to 331,857,502.80, 497,786,254.20 and 86,193,979.80

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Solution

The fourth proportional to 331,857,502.80, 497,786,254.20 and 86,193,979.80 is: 129,290,969.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,857,502.80 : 497,786,254.20 = 86,193,979.80 : x
  2. Step 2: Convert to fraction form
    331,857,502.80/497,786,254.20 = 86,193,979.80/x
  3. Step 3: Cross multiply
    331,857,502.80x = 497,786,254.20 × 86,193,979.80
  4. Step 4: Simplify right side
    331,857,502.80x = 42,906,178,339,232,464
  5. Step 5: Solve for x
    x = 42,906,178,339,232,464/331,857,502.80
  6. Step 6: Final answer
    x = 129,290,969.70

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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.