Home / 81,657,008.10-122,485,512.15-73,342,908.90

Finding the Fourth Proportional to 81,657,008.10, 122,485,512.15 and 73,342,908.90

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Solution

The fourth proportional to 81,657,008.10, 122,485,512.15 and 73,342,908.90 is: 110,014,363.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,657,008.10 : 122,485,512.15 = 73,342,908.90 : x
  2. Step 2: Convert to fraction form
    81,657,008.10/122,485,512.15 = 73,342,908.90/x
  3. Step 3: Cross multiply
    81,657,008.10x = 122,485,512.15 × 73,342,908.90
  4. Step 4: Simplify right side
    81,657,008.10x = 8,983,443,759,187,294
  5. Step 5: Solve for x
    x = 8,983,443,759,187,294/81,657,008.10
  6. Step 6: Final answer
    x = 110,014,363.35

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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.