Home / 42,287,113.20-63,377,525.70-20,675,179.20

Finding the Fourth Proportional to 42,287,113.20, 63,377,525.70 and 20,675,179.20

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Solution

The fourth proportional to 42,287,113.20, 63,377,525.70 and 20,675,179.20 is: 30,986,785.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,287,113.20 : 63,377,525.70 = 20,675,179.20 : x
  2. Step 2: Convert to fraction form
    42,287,113.20/63,377,525.70 = 20,675,179.20/x
  3. Step 3: Cross multiply
    42,287,113.20x = 63,377,525.70 × 20,675,179.20
  4. Step 4: Simplify right side
    42,287,113.20x = 1,310,341,701,100,105.50
  5. Step 5: Solve for x
    x = 1,310,341,701,100,105.50/42,287,113.20
  6. Step 6: Final answer
    x = 30,986,785.38

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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.