Home / 7,680,279.60-11,520,419.40-2,629,911.60

Finding the Fourth Proportional to 7,680,279.60, 11,520,419.40 and 2,629,911.60

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Solution

The fourth proportional to 7,680,279.60, 11,520,419.40 and 2,629,911.60 is: 3,944,867.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,680,279.60 : 11,520,419.40 = 2,629,911.60 : x
  2. Step 2: Convert to fraction form
    7,680,279.60/11,520,419.40 = 2,629,911.60/x
  3. Step 3: Cross multiply
    7,680,279.60x = 11,520,419.40 × 2,629,911.60
  4. Step 4: Simplify right side
    7,680,279.60x = 30,297,684,616,925.04
  5. Step 5: Solve for x
    x = 30,297,684,616,925.04/7,680,279.60
  6. Step 6: Final answer
    x = 3,944,867.40

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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.