Home / 440,103,005.20-660,154,507.80-394,186,502.80

Finding the Fourth Proportional to 440,103,005.20, 660,154,507.80 and 394,186,502.80

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Solution

The fourth proportional to 440,103,005.20, 660,154,507.80 and 394,186,502.80 is: 591,279,754.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,103,005.20 : 660,154,507.80 = 394,186,502.80 : x
  2. Step 2: Convert to fraction form
    440,103,005.20/660,154,507.80 = 394,186,502.80/x
  3. Step 3: Cross multiply
    440,103,005.20x = 660,154,507.80 × 394,186,502.80
  4. Step 4: Simplify right side
    440,103,005.20x = 260,223,996,737,337,312
  5. Step 5: Solve for x
    x = 260,223,996,737,337,312/440,103,005.20
  6. Step 6: Final answer
    x = 591,279,754.20

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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.