Home / 18,021,619.52-27,042,139.56-13,098,186.80

Finding the Fourth Proportional to 18,021,619.52, 27,042,139.56 and 13,098,186.80

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Solution

The fourth proportional to 18,021,619.52, 27,042,139.56 and 13,098,186.80 is: 19,654,337.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,021,619.52 : 27,042,139.56 = 13,098,186.80 : x
  2. Step 2: Convert to fraction form
    18,021,619.52/27,042,139.56 = 13,098,186.80/x
  3. Step 3: Cross multiply
    18,021,619.52x = 27,042,139.56 × 13,098,186.80
  4. Step 4: Simplify right side
    18,021,619.52x = 354,202,995,428,549.81
  5. Step 5: Solve for x
    x = 354,202,995,428,549.81/18,021,619.52
  6. Step 6: Final answer
    x = 19,654,337.67

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1.5x scale

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.