Home / 8,161,317.60-12,241,976.40-7,279,519.20

Finding the Fourth Proportional to 8,161,317.60, 12,241,976.40 and 7,279,519.20

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Solution

The fourth proportional to 8,161,317.60, 12,241,976.40 and 7,279,519.20 is: 10,919,278.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,161,317.60 : 12,241,976.40 = 7,279,519.20 : x
  2. Step 2: Convert to fraction form
    8,161,317.60/12,241,976.40 = 7,279,519.20/x
  3. Step 3: Cross multiply
    8,161,317.60x = 12,241,976.40 × 7,279,519.20
  4. Step 4: Simplify right side
    8,161,317.60x = 89,115,702,249,746.89
  5. Step 5: Solve for x
    x = 89,115,702,249,746.89/8,161,317.60
  6. Step 6: Final answer
    x = 10,919,278.80

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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.