Home / 18,902,715.48-28,356,043.73-7,231,064.18

Finding the Fourth Proportional to 18,902,715.48, 28,356,043.73 and 7,231,064.18

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Solution

The fourth proportional to 18,902,715.48, 28,356,043.73 and 7,231,064.18 is: 10,847,350.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,902,715.48 : 28,356,043.73 = 7,231,064.18 : x
  2. Step 2: Convert to fraction form
    18,902,715.48/28,356,043.73 = 7,231,064.18/x
  3. Step 3: Cross multiply
    18,902,715.48x = 28,356,043.73 × 7,231,064.18
  4. Step 4: Simplify right side
    18,902,715.48x = 205,044,371,924,581.06
  5. Step 5: Solve for x
    x = 205,044,371,924,581.06/18,902,715.48
  6. Step 6: Final answer
    x = 10,847,350.06

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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.