Home / 80,496,580.20-120,744,870.30-57,989,725.80

Finding the Fourth Proportional to 80,496,580.20, 120,744,870.30 and 57,989,725.80

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Solution

The fourth proportional to 80,496,580.20, 120,744,870.30 and 57,989,725.80 is: 86,984,588.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,496,580.20 : 120,744,870.30 = 57,989,725.80 : x
  2. Step 2: Convert to fraction form
    80,496,580.20/120,744,870.30 = 57,989,725.80/x
  3. Step 3: Cross multiply
    80,496,580.20x = 120,744,870.30 × 57,989,725.80
  4. Step 4: Simplify right side
    80,496,580.20x = 7,001,961,920,453,563
  5. Step 5: Solve for x
    x = 7,001,961,920,453,563/80,496,580.20
  6. Step 6: Final answer
    x = 86,984,588.70

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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.