Home / 12,251,947.60-18,377,921.40-8,220,869.20

Finding the Fourth Proportional to 12,251,947.60, 18,377,921.40 and 8,220,869.20

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Solution

The fourth proportional to 12,251,947.60, 18,377,921.40 and 8,220,869.20 is: 12,331,303.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,251,947.60 : 18,377,921.40 = 8,220,869.20 : x
  2. Step 2: Convert to fraction form
    12,251,947.60/18,377,921.40 = 8,220,869.20/x
  3. Step 3: Cross multiply
    12,251,947.60x = 18,377,921.40 × 8,220,869.20
  4. Step 4: Simplify right side
    12,251,947.60x = 151,082,487,997,280.88
  5. Step 5: Solve for x
    x = 151,082,487,997,280.88/12,251,947.60
  6. Step 6: Final answer
    x = 12,331,303.80

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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.