Home / 28,428,857.38-42,531,085.68-21,532,203.75

Finding the Fourth Proportional to 28,428,857.38, 42,531,085.68 and 21,532,203.75

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Solution

The fourth proportional to 28,428,857.38, 42,531,085.68 and 21,532,203.75 is: 32,213,324.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,428,857.38 : 42,531,085.68 = 21,532,203.75 : x
  2. Step 2: Convert to fraction form
    28,428,857.38/42,531,085.68 = 21,532,203.75/x
  3. Step 3: Cross multiply
    28,428,857.38x = 42,531,085.68 × 21,532,203.75
  4. Step 4: Simplify right side
    28,428,857.38x = 915,788,002,570,467.25
  5. Step 5: Solve for x
    x = 915,788,002,570,467.25/28,428,857.38
  6. Step 6: Final answer
    x = 32,213,324.31

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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.