Home / 20,689,531.20-30,981,152.70-16,402,573.80

Finding the Fourth Proportional to 20,689,531.20, 30,981,152.70 and 16,402,573.80

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Solution

The fourth proportional to 20,689,531.20, 30,981,152.70 and 16,402,573.80 is: 24,561,728.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,689,531.20 : 30,981,152.70 = 16,402,573.80 : x
  2. Step 2: Convert to fraction form
    20,689,531.20/30,981,152.70 = 16,402,573.80/x
  3. Step 3: Cross multiply
    20,689,531.20x = 30,981,152.70 × 16,402,573.80
  4. Step 4: Simplify right side
    20,689,531.20x = 508,170,643,570,819.25
  5. Step 5: Solve for x
    x = 508,170,643,570,819.25/20,689,531.20
  6. Step 6: Final answer
    x = 24,561,728.28

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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.