Home / 12,476,719.20-18,722,077.20-5,287,029.60

Finding the Fourth Proportional to 12,476,719.20, 18,722,077.20 and 5,287,029.60

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Solution

The fourth proportional to 12,476,719.20, 18,722,077.20 and 5,287,029.60 is: 7,933,509.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,476,719.20 : 18,722,077.20 = 5,287,029.60 : x
  2. Step 2: Convert to fraction form
    12,476,719.20/18,722,077.20 = 5,287,029.60/x
  3. Step 3: Cross multiply
    12,476,719.20x = 18,722,077.20 × 5,287,029.60
  4. Step 4: Simplify right side
    12,476,719.20x = 98,984,176,329,885.11
  5. Step 5: Solve for x
    x = 98,984,176,329,885.11/12,476,719.20
  6. Step 6: Final answer
    x = 7,933,509.98

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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.