Home / 80,496,554.20-120,744,831.30-57,989,699.80

Finding the Fourth Proportional to 80,496,554.20, 120,744,831.30 and 57,989,699.80

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Solution

The fourth proportional to 80,496,554.20, 120,744,831.30 and 57,989,699.80 is: 86,984,549.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,496,554.20 : 120,744,831.30 = 57,989,699.80 : x
  2. Step 2: Convert to fraction form
    80,496,554.20/120,744,831.30 = 57,989,699.80/x
  3. Step 3: Cross multiply
    80,496,554.20x = 120,744,831.30 × 57,989,699.80
  4. Step 4: Simplify right side
    80,496,554.20x = 7,001,956,519,488,643
  5. Step 5: Solve for x
    x = 7,001,956,519,488,643/80,496,554.20
  6. Step 6: Final answer
    x = 86,984,549.70

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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.