Home / 81,252,781.56-121,888,417.14-29,461,777.11

Finding the Fourth Proportional to 81,252,781.56, 121,888,417.14 and 29,461,777.11

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Solution

The fourth proportional to 81,252,781.56, 121,888,417.14 and 29,461,777.11 is: 44,196,017.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,252,781.56 : 121,888,417.14 = 29,461,777.11 : x
  2. Step 2: Convert to fraction form
    81,252,781.56/121,888,417.14 = 29,461,777.11/x
  3. Step 3: Cross multiply
    81,252,781.56x = 121,888,417.14 × 29,461,777.11
  4. Step 4: Simplify right side
    81,252,781.56x = 3,591,049,378,069,383.50
  5. Step 5: Solve for x
    x = 3,591,049,378,069,383.50/81,252,781.56
  6. Step 6: Final answer
    x = 44,196,017.77

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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.