Home / 18,001,049.70-27,001,574.55-13,218,080.70

Finding the Fourth Proportional to 18,001,049.70, 27,001,574.55 and 13,218,080.70

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Solution

The fourth proportional to 18,001,049.70, 27,001,574.55 and 13,218,080.70 is: 19,827,121.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,001,049.70 : 27,001,574.55 = 13,218,080.70 : x
  2. Step 2: Convert to fraction form
    18,001,049.70/27,001,574.55 = 13,218,080.70/x
  3. Step 3: Cross multiply
    18,001,049.70x = 27,001,574.55 × 13,218,080.70
  4. Step 4: Simplify right side
    18,001,049.70x = 356,908,991,428,966.19
  5. Step 5: Solve for x
    x = 356,908,991,428,966.19/18,001,049.70
  6. Step 6: Final answer
    x = 19,827,121.05

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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.