Home / 52,178,749.20-78,268,123.80-18,103,539.60

Finding the Fourth Proportional to 52,178,749.20, 78,268,123.80 and 18,103,539.60

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Solution

The fourth proportional to 52,178,749.20, 78,268,123.80 and 18,103,539.60 is: 27,155,309.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,178,749.20 : 78,268,123.80 = 18,103,539.60 : x
  2. Step 2: Convert to fraction form
    52,178,749.20/78,268,123.80 = 18,103,539.60/x
  3. Step 3: Cross multiply
    52,178,749.20x = 78,268,123.80 × 18,103,539.60
  4. Step 4: Simplify right side
    52,178,749.20x = 1,416,930,078,631,002.50
  5. Step 5: Solve for x
    x = 1,416,930,078,631,002.50/52,178,749.20
  6. Step 6: Final answer
    x = 27,155,309.40

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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.