Home / 78,235,226.28-108,038,129.94-50,406,788.52

Finding the Fourth Proportional to 78,235,226.28, 108,038,129.94 and 50,406,788.52

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Solution

The fourth proportional to 78,235,226.28, 108,038,129.94 and 50,406,788.52 is: 69,608,735.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,235,226.28 : 108,038,129.94 = 50,406,788.52 : x
  2. Step 2: Convert to fraction form
    78,235,226.28/108,038,129.94 = 50,406,788.52/x
  3. Step 3: Cross multiply
    78,235,226.28x = 108,038,129.94 × 50,406,788.52
  4. Step 4: Simplify right side
    78,235,226.28x = 5,445,855,167,981,861
  5. Step 5: Solve for x
    x = 5,445,855,167,981,861/78,235,226.28
  6. Step 6: Final answer
    x = 69,608,735.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.