Home / 81,178,001.24-121,754,039.82-23,656,817.56

Finding the Fourth Proportional to 81,178,001.24, 121,754,039.82 and 23,656,817.56

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Solution

The fourth proportional to 81,178,001.24, 121,754,039.82 and 23,656,817.56 is: 35,481,448.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,178,001.24 : 121,754,039.82 = 23,656,817.56 : x
  2. Step 2: Convert to fraction form
    81,178,001.24/121,754,039.82 = 23,656,817.56/x
  3. Step 3: Cross multiply
    81,178,001.24x = 121,754,039.82 × 23,656,817.56
  4. Step 4: Simplify right side
    81,178,001.24x = 2,880,313,107,214,715
  5. Step 5: Solve for x
    x = 2,880,313,107,214,715/81,178,001.24
  6. Step 6: Final answer
    x = 35,481,448.95

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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.