Home / 80,852,862.20-121,284,542.10-42,589,110.20

Finding the Fourth Proportional to 80,852,862.20, 121,284,542.10 and 42,589,110.20

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Solution

The fourth proportional to 80,852,862.20, 121,284,542.10 and 42,589,110.20 is: 63,886,430.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,852,862.20 : 121,284,542.10 = 42,589,110.20 : x
  2. Step 2: Convert to fraction form
    80,852,862.20/121,284,542.10 = 42,589,110.20/x
  3. Step 3: Cross multiply
    80,852,862.20x = 121,284,542.10 × 42,589,110.20
  4. Step 4: Simplify right side
    80,852,862.20x = 5,165,400,729,053,440
  5. Step 5: Solve for x
    x = 5,165,400,729,053,440/80,852,862.20
  6. Step 6: Final answer
    x = 63,886,430.10

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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.