Home / 81,252,236.64-121,799,972.88-27,370,155.36

Finding the Fourth Proportional to 81,252,236.64, 121,799,972.88 and 27,370,155.36

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Solution

The fourth proportional to 81,252,236.64, 121,799,972.88 and 27,370,155.36 is: 41,028,829.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,252,236.64 : 121,799,972.88 = 27,370,155.36 : x
  2. Step 2: Convert to fraction form
    81,252,236.64/121,799,972.88 = 27,370,155.36/x
  3. Step 3: Cross multiply
    81,252,236.64x = 121,799,972.88 × 27,370,155.36
  4. Step 4: Simplify right side
    81,252,236.64x = 3,333,684,180,569,386.50
  5. Step 5: Solve for x
    x = 3,333,684,180,569,386.50/81,252,236.64
  6. Step 6: Final answer
    x = 41,028,829.71

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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.