Home / 54,120,902.92-81,194,901.90-15,782,421.40

Finding the Fourth Proportional to 54,120,902.92, 81,194,901.90 and 15,782,421.40

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Solution

The fourth proportional to 54,120,902.92, 81,194,901.90 and 15,782,421.40 is: 23,677,582.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,120,902.92 : 81,194,901.90 = 15,782,421.40 : x
  2. Step 2: Convert to fraction form
    54,120,902.92/81,194,901.90 = 15,782,421.40/x
  3. Step 3: Cross multiply
    54,120,902.92x = 81,194,901.90 × 15,782,421.40
  4. Step 4: Simplify right side
    54,120,902.92x = 1,281,452,157,317,460.75
  5. Step 5: Solve for x
    x = 1,281,452,157,317,460.75/54,120,902.92
  6. Step 6: Final answer
    x = 23,677,582.75

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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.