Home / 121,392,387.32-181,902,423.54-82,481,283.32

Finding the Fourth Proportional to 121,392,387.32, 181,902,423.54 and 82,481,283.32

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Solution

The fourth proportional to 121,392,387.32, 181,902,423.54 and 82,481,283.32 is: 123,595,438.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,392,387.32 : 181,902,423.54 = 82,481,283.32 : x
  2. Step 2: Convert to fraction form
    121,392,387.32/181,902,423.54 = 82,481,283.32/x
  3. Step 3: Cross multiply
    121,392,387.32x = 181,902,423.54 × 82,481,283.32
  4. Step 4: Simplify right side
    121,392,387.32x = 15,003,545,332,597,376
  5. Step 5: Solve for x
    x = 15,003,545,332,597,376/121,392,387.32
  6. Step 6: Final answer
    x = 123,595,438.43

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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.