Home / 20,219,079.60-30,328,619.40-14,479,516.80

Finding the Fourth Proportional to 20,219,079.60, 30,328,619.40 and 14,479,516.80

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Solution

The fourth proportional to 20,219,079.60, 30,328,619.40 and 14,479,516.80 is: 21,719,275.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,219,079.60 : 30,328,619.40 = 14,479,516.80 : x
  2. Step 2: Convert to fraction form
    20,219,079.60/30,328,619.40 = 14,479,516.80/x
  3. Step 3: Cross multiply
    20,219,079.60x = 30,328,619.40 × 14,479,516.80
  4. Step 4: Simplify right side
    20,219,079.60x = 439,143,754,123,105.94
  5. Step 5: Solve for x
    x = 439,143,754,123,105.94/20,219,079.60
  6. Step 6: Final answer
    x = 21,719,275.20

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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.