Home / 12,219,489.60-18,348,818.40-9,715,963.20

Finding the Fourth Proportional to 12,219,489.60, 18,348,818.40 and 9,715,963.20

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Solution

The fourth proportional to 12,219,489.60, 18,348,818.40 and 9,715,963.20 is: 14,589,516.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,219,489.60 : 18,348,818.40 = 9,715,963.20 : x
  2. Step 2: Convert to fraction form
    12,219,489.60/18,348,818.40 = 9,715,963.20/x
  3. Step 3: Cross multiply
    12,219,489.60x = 18,348,818.40 × 9,715,963.20
  4. Step 4: Simplify right side
    12,219,489.60x = 178,276,444,337,882.84
  5. Step 5: Solve for x
    x = 178,276,444,337,882.84/12,219,489.60
  6. Step 6: Final answer
    x = 14,589,516.43

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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.