Home / 81,227,057.89-121,828,602.07-23,703,884.05

Finding the Fourth Proportional to 81,227,057.89, 121,828,602.07 and 23,703,884.05

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Solution

The fourth proportional to 81,227,057.89, 121,828,602.07 and 23,703,884.05 is: 35,552,328.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,227,057.89 : 121,828,602.07 = 23,703,884.05 : x
  2. Step 2: Convert to fraction form
    81,227,057.89/121,828,602.07 = 23,703,884.05/x
  3. Step 3: Cross multiply
    81,227,057.89x = 121,828,602.07 × 23,703,884.05
  4. Step 4: Simplify right side
    81,227,057.89x = 2,887,811,057,440,870
  5. Step 5: Solve for x
    x = 2,887,811,057,440,870/81,227,057.89
  6. Step 6: Final answer
    x = 35,552,328.65

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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.