Home / 664,524,334.80-996,786,502.20-392,426,542.80

Finding the Fourth Proportional to 664,524,334.80, 996,786,502.20 and 392,426,542.80

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Solution

The fourth proportional to 664,524,334.80, 996,786,502.20 and 392,426,542.80 is: 588,639,814.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,524,334.80 : 996,786,502.20 = 392,426,542.80 : x
  2. Step 2: Convert to fraction form
    664,524,334.80/996,786,502.20 = 392,426,542.80/x
  3. Step 3: Cross multiply
    664,524,334.80x = 996,786,502.20 × 392,426,542.80
  4. Step 4: Simplify right side
    664,524,334.80x = 391,165,480,968,050,624
  5. Step 5: Solve for x
    x = 391,165,480,968,050,624/664,524,334.80
  6. Step 6: Final answer
    x = 588,639,814.20

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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.