Home / 81,648,003.70-122,472,005.55-45,741,546.10

Finding the Fourth Proportional to 81,648,003.70, 122,472,005.55 and 45,741,546.10

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Solution

The fourth proportional to 81,648,003.70, 122,472,005.55 and 45,741,546.10 is: 68,612,319.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,648,003.70 : 122,472,005.55 = 45,741,546.10 : x
  2. Step 2: Convert to fraction form
    81,648,003.70/122,472,005.55 = 45,741,546.10/x
  3. Step 3: Cross multiply
    81,648,003.70x = 122,472,005.55 × 45,741,546.10
  4. Step 4: Simplify right side
    81,648,003.70x = 5,602,058,887,824,781
  5. Step 5: Solve for x
    x = 5,602,058,887,824,781/81,648,003.70
  6. Step 6: Final answer
    x = 68,612,319.15

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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.