Home / 21,425,903.40-32,138,855.10-15,969,775.80

Finding the Fourth Proportional to 21,425,903.40, 32,138,855.10 and 15,969,775.80

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Solution

The fourth proportional to 21,425,903.40, 32,138,855.10 and 15,969,775.80 is: 23,954,663.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,425,903.40 : 32,138,855.10 = 15,969,775.80 : x
  2. Step 2: Convert to fraction form
    21,425,903.40/32,138,855.10 = 15,969,775.80/x
  3. Step 3: Cross multiply
    21,425,903.40x = 32,138,855.10 × 15,969,775.80
  4. Step 4: Simplify right side
    21,425,903.40x = 513,250,310,415,686.62
  5. Step 5: Solve for x
    x = 513,250,310,415,686.62/21,425,903.40
  6. Step 6: Final answer
    x = 23,954,663.70

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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.