Home / 8,509,071.20-12,739,987.20-8,272,875.20

Finding the Fourth Proportional to 8,509,071.20, 12,739,987.20 and 8,272,875.20

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Solution

The fourth proportional to 8,509,071.20, 12,739,987.20 and 8,272,875.20 is: 12,386,348.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,509,071.20 : 12,739,987.20 = 8,272,875.20 : x
  2. Step 2: Convert to fraction form
    8,509,071.20/12,739,987.20 = 8,272,875.20/x
  3. Step 3: Cross multiply
    8,509,071.20x = 12,739,987.20 × 8,272,875.20
  4. Step 4: Simplify right side
    8,509,071.20x = 105,396,324,155,197.44
  5. Step 5: Solve for x
    x = 105,396,324,155,197.44/8,509,071.20
  6. Step 6: Final answer
    x = 12,386,348.84

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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.