Home / 80,589,617.40-120,912,419.70-35,183,998.20

Finding the Fourth Proportional to 80,589,617.40, 120,912,419.70 and 35,183,998.20

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Solution

The fourth proportional to 80,589,617.40, 120,912,419.70 and 35,183,998.20 is: 52,788,218.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,589,617.40 : 120,912,419.70 = 35,183,998.20 : x
  2. Step 2: Convert to fraction form
    80,589,617.40/120,912,419.70 = 35,183,998.20/x
  3. Step 3: Cross multiply
    80,589,617.40x = 120,912,419.70 × 35,183,998.20
  4. Step 4: Simplify right side
    80,589,617.40x = 4,254,182,357,082,445
  5. Step 5: Solve for x
    x = 4,254,182,357,082,445/80,589,617.40
  6. Step 6: Final answer
    x = 52,788,218.81

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1.5x scale

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.