Home / 8,085,279.60-12,128,113.80-2,405,689.20

Finding the Fourth Proportional to 8,085,279.60, 12,128,113.80 and 2,405,689.20

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Solution

The fourth proportional to 8,085,279.60, 12,128,113.80 and 2,405,689.20 is: 3,608,591.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,085,279.60 : 12,128,113.80 = 2,405,689.20 : x
  2. Step 2: Convert to fraction form
    8,085,279.60/12,128,113.80 = 2,405,689.20/x
  3. Step 3: Cross multiply
    8,085,279.60x = 12,128,113.80 × 2,405,689.20
  4. Step 4: Simplify right side
    8,085,279.60x = 29,176,472,385,030.96
  5. Step 5: Solve for x
    x = 29,176,472,385,030.96/8,085,279.60
  6. Step 6: Final answer
    x = 3,608,591.64

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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.