Home / 80,765,919.60-121,148,879.40-48,915,423.60

Finding the Fourth Proportional to 80,765,919.60, 121,148,879.40 and 48,915,423.60

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Solution

The fourth proportional to 80,765,919.60, 121,148,879.40 and 48,915,423.60 is: 73,373,135.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,765,919.60 : 121,148,879.40 = 48,915,423.60 : x
  2. Step 2: Convert to fraction form
    80,765,919.60/121,148,879.40 = 48,915,423.60/x
  3. Step 3: Cross multiply
    80,765,919.60x = 121,148,879.40 × 48,915,423.60
  4. Step 4: Simplify right side
    80,765,919.60x = 5,926,048,754,516,314
  5. Step 5: Solve for x
    x = 5,926,048,754,516,314/80,765,919.60
  6. Step 6: Final answer
    x = 73,373,135.40

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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.