Home / 42,619,431.20-63,929,146.80-15,703,584.80

Finding the Fourth Proportional to 42,619,431.20, 63,929,146.80 and 15,703,584.80

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Solution

The fourth proportional to 42,619,431.20, 63,929,146.80 and 15,703,584.80 is: 23,555,377.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,619,431.20 : 63,929,146.80 = 15,703,584.80 : x
  2. Step 2: Convert to fraction form
    42,619,431.20/63,929,146.80 = 15,703,584.80/x
  3. Step 3: Cross multiply
    42,619,431.20x = 63,929,146.80 × 15,703,584.80
  4. Step 4: Simplify right side
    42,619,431.20x = 1,003,916,777,965,448.62
  5. Step 5: Solve for x
    x = 1,003,916,777,965,448.62/42,619,431.20
  6. Step 6: Final answer
    x = 23,555,377.20

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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.