Home / 218,646,026.30-328,095,010.65-82,429,168.70

Finding the Fourth Proportional to 218,646,026.30, 328,095,010.65 and 82,429,168.70

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Solution

The fourth proportional to 218,646,026.30, 328,095,010.65 and 82,429,168.70 is: 123,691,243.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,646,026.30 : 328,095,010.65 = 82,429,168.70 : x
  2. Step 2: Convert to fraction form
    218,646,026.30/328,095,010.65 = 82,429,168.70/x
  3. Step 3: Cross multiply
    218,646,026.30x = 328,095,010.65 × 82,429,168.70
  4. Step 4: Simplify right side
    218,646,026.30x = 27,044,598,982,497,144
  5. Step 5: Solve for x
    x = 27,044,598,982,497,144/218,646,026.30
  6. Step 6: Final answer
    x = 123,691,243.97

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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.