Home / 42,078,073.20-63,063,965.70-20,466,139.20

Finding the Fourth Proportional to 42,078,073.20, 63,063,965.70 and 20,466,139.20

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Solution

The fourth proportional to 42,078,073.20, 63,063,965.70 and 20,466,139.20 is: 30,673,360.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,078,073.20 : 63,063,965.70 = 20,466,139.20 : x
  2. Step 2: Convert to fraction form
    42,078,073.20/63,063,965.70 = 20,466,139.20/x
  3. Step 3: Cross multiply
    42,078,073.20x = 63,063,965.70 × 20,466,139.20
  4. Step 4: Simplify right side
    42,078,073.20x = 1,290,675,900,520,225.50
  5. Step 5: Solve for x
    x = 1,290,675,900,520,225.50/42,078,073.20
  6. Step 6: Final answer
    x = 30,673,360.31

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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.