Home / 81,978,923.01-122,989,943.24-29,461,895.74

Finding the Fourth Proportional to 81,978,923.01, 122,989,943.24 and 29,461,895.74

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Solution

The fourth proportional to 81,978,923.01, 122,989,943.24 and 29,461,895.74 is: 44,200,591.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,978,923.01 : 122,989,943.24 = 29,461,895.74 : x
  2. Step 2: Convert to fraction form
    81,978,923.01/122,989,943.24 = 29,461,895.74/x
  3. Step 3: Cross multiply
    81,978,923.01x = 122,989,943.24 × 29,461,895.74
  4. Step 4: Simplify right side
    81,978,923.01x = 3,623,516,884,805,397.50
  5. Step 5: Solve for x
    x = 3,623,516,884,805,397.50/81,978,923.01
  6. Step 6: Final answer
    x = 44,200,591.47

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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.