Home / 18,091,812.30-27,137,718.45-7,989,233.10

Finding the Fourth Proportional to 18,091,812.30, 27,137,718.45 and 7,989,233.10

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Solution

The fourth proportional to 18,091,812.30, 27,137,718.45 and 7,989,233.10 is: 11,983,849.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,091,812.30 : 27,137,718.45 = 7,989,233.10 : x
  2. Step 2: Convert to fraction form
    18,091,812.30/27,137,718.45 = 7,989,233.10/x
  3. Step 3: Cross multiply
    18,091,812.30x = 27,137,718.45 × 7,989,233.10
  4. Step 4: Simplify right side
    18,091,812.30x = 216,809,558,499,220.69
  5. Step 5: Solve for x
    x = 216,809,558,499,220.69/18,091,812.30
  6. Step 6: Final answer
    x = 11,983,849.65

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Double scale
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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.