Home / 81,177,965.04-121,753,985.40-23,656,781.37

Finding the Fourth Proportional to 81,177,965.04, 121,753,985.40 and 23,656,781.37

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Solution

The fourth proportional to 81,177,965.04, 121,753,985.40 and 23,656,781.37 is: 35,481,394.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,177,965.04 : 121,753,985.40 = 23,656,781.37 : x
  2. Step 2: Convert to fraction form
    81,177,965.04/121,753,985.40 = 23,656,781.37/x
  3. Step 3: Cross multiply
    81,177,965.04x = 121,753,985.40 × 23,656,781.37
  4. Step 4: Simplify right side
    81,177,965.04x = 2,880,307,413,533,972.50
  5. Step 5: Solve for x
    x = 2,880,307,413,533,972.50/81,177,965.04
  6. Step 6: Final answer
    x = 35,481,394.64

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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.