Home / 28,771,844.80-43,086,908.40-13,608,061.60

Finding the Fourth Proportional to 28,771,844.80, 43,086,908.40 and 13,608,061.60

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Solution

The fourth proportional to 28,771,844.80, 43,086,908.40 and 13,608,061.60 is: 20,378,578.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,771,844.80 : 43,086,908.40 = 13,608,061.60 : x
  2. Step 2: Convert to fraction form
    28,771,844.80/43,086,908.40 = 13,608,061.60/x
  3. Step 3: Cross multiply
    28,771,844.80x = 43,086,908.40 × 13,608,061.60
  4. Step 4: Simplify right side
    28,771,844.80x = 586,329,303,660,757.38
  5. Step 5: Solve for x
    x = 586,329,303,660,757.38/28,771,844.80
  6. Step 6: Final answer
    x = 20,378,578.70

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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.