Home / 8,200,159.92-12,300,283.68-5,378,142.60

Finding the Fourth Proportional to 8,200,159.92, 12,300,283.68 and 5,378,142.60

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Solution

The fourth proportional to 8,200,159.92, 12,300,283.68 and 5,378,142.60 is: 8,067,242.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,200,159.92 : 12,300,283.68 = 5,378,142.60 : x
  2. Step 2: Convert to fraction form
    8,200,159.92/12,300,283.68 = 5,378,142.60/x
  3. Step 3: Cross multiply
    8,200,159.92x = 12,300,283.68 × 5,378,142.60
  4. Step 4: Simplify right side
    8,200,159.92x = 66,152,679,651,492.77
  5. Step 5: Solve for x
    x = 66,152,679,651,492.77/8,200,159.92
  6. Step 6: Final answer
    x = 8,067,242.63

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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.