Home / 27,515,101.20-41,272,651.80-21,157,443.60

Finding the Fourth Proportional to 27,515,101.20, 41,272,651.80 and 21,157,443.60

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Solution

The fourth proportional to 27,515,101.20, 41,272,651.80 and 21,157,443.60 is: 31,736,165.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,515,101.20 : 41,272,651.80 = 21,157,443.60 : x
  2. Step 2: Convert to fraction form
    27,515,101.20/41,272,651.80 = 21,157,443.60/x
  3. Step 3: Cross multiply
    27,515,101.20x = 41,272,651.80 × 21,157,443.60
  4. Step 4: Simplify right side
    27,515,101.20x = 873,223,802,680,938.50
  5. Step 5: Solve for x
    x = 873,223,802,680,938.50/27,515,101.20
  6. Step 6: Final answer
    x = 31,736,165.40

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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.