Home / 81,215,216.40-121,769,024.40-44,841,032.40

Finding the Fourth Proportional to 81,215,216.40, 121,769,024.40 and 44,841,032.40

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Solution

The fourth proportional to 81,215,216.40, 121,769,024.40 and 44,841,032.40 is: 67,231,844.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,215,216.40 : 121,769,024.40 = 44,841,032.40 : x
  2. Step 2: Convert to fraction form
    81,215,216.40/121,769,024.40 = 44,841,032.40/x
  3. Step 3: Cross multiply
    81,215,216.40x = 121,769,024.40 × 44,841,032.40
  4. Step 4: Simplify right side
    81,215,216.40x = 5,460,248,768,436,791
  5. Step 5: Solve for x
    x = 5,460,248,768,436,791/81,215,216.40
  6. Step 6: Final answer
    x = 67,231,844.11

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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.