Home / 8,752,899.70-13,120,492.20-5,156,815.60

Finding the Fourth Proportional to 8,752,899.70, 13,120,492.20 and 5,156,815.60

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Solution

The fourth proportional to 8,752,899.70, 13,120,492.20 and 5,156,815.60 is: 7,730,005.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,752,899.70 : 13,120,492.20 = 5,156,815.60 : x
  2. Step 2: Convert to fraction form
    8,752,899.70/13,120,492.20 = 5,156,815.60/x
  3. Step 3: Cross multiply
    8,752,899.70x = 13,120,492.20 × 5,156,815.60
  4. Step 4: Simplify right side
    8,752,899.70x = 67,659,958,856,638.31
  5. Step 5: Solve for x
    x = 67,659,958,856,638.31/8,752,899.70
  6. Step 6: Final answer
    x = 7,730,005.05

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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.