Home / 13,428,760.20-20,143,140.30-11,602,177.80

Finding the Fourth Proportional to 13,428,760.20, 20,143,140.30 and 11,602,177.80

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Solution

The fourth proportional to 13,428,760.20, 20,143,140.30 and 11,602,177.80 is: 17,403,266.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,428,760.20 : 20,143,140.30 = 11,602,177.80 : x
  2. Step 2: Convert to fraction form
    13,428,760.20/20,143,140.30 = 11,602,177.80/x
  3. Step 3: Cross multiply
    13,428,760.20x = 20,143,140.30 × 11,602,177.80
  4. Step 4: Simplify right side
    13,428,760.20x = 233,704,295,210,945.38
  5. Step 5: Solve for x
    x = 233,704,295,210,945.38/13,428,760.20
  6. Step 6: Final answer
    x = 17,403,266.70

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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.