Home / 21,319,203.20-31,969,473.60-8,535,459.20

Finding the Fourth Proportional to 21,319,203.20, 31,969,473.60 and 8,535,459.20

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Solution

The fourth proportional to 21,319,203.20, 31,969,473.60 and 8,535,459.20 is: 12,799,452.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,319,203.20 : 31,969,473.60 = 8,535,459.20 : x
  2. Step 2: Convert to fraction form
    21,319,203.20/31,969,473.60 = 8,535,459.20/x
  3. Step 3: Cross multiply
    21,319,203.20x = 31,969,473.60 × 8,535,459.20
  4. Step 4: Simplify right side
    21,319,203.20x = 272,874,137,558,277.09
  5. Step 5: Solve for x
    x = 272,874,137,558,277.09/21,319,203.20
  6. Step 6: Final answer
    x = 12,799,452.92

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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.