Home / 8,521,972.40-12,782,958.60-5,336,922.80

Finding the Fourth Proportional to 8,521,972.40, 12,782,958.60 and 5,336,922.80

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Solution

The fourth proportional to 8,521,972.40, 12,782,958.60 and 5,336,922.80 is: 8,005,384.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,521,972.40 : 12,782,958.60 = 5,336,922.80 : x
  2. Step 2: Convert to fraction form
    8,521,972.40/12,782,958.60 = 5,336,922.80/x
  3. Step 3: Cross multiply
    8,521,972.40x = 12,782,958.60 × 5,336,922.80
  4. Step 4: Simplify right side
    8,521,972.40x = 68,221,663,203,796.08
  5. Step 5: Solve for x
    x = 68,221,663,203,796.08/8,521,972.40
  6. Step 6: Final answer
    x = 8,005,384.20

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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.