Home / 8,680,201.60-12,983,438.40-7,788,092.80

Finding the Fourth Proportional to 8,680,201.60, 12,983,438.40 and 7,788,092.80

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Solution

The fourth proportional to 8,680,201.60, 12,983,438.40 and 7,788,092.80 is: 11,649,063.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,680,201.60 : 12,983,438.40 = 7,788,092.80 : x
  2. Step 2: Convert to fraction form
    8,680,201.60/12,983,438.40 = 7,788,092.80/x
  3. Step 3: Cross multiply
    8,680,201.60x = 12,983,438.40 × 7,788,092.80
  4. Step 4: Simplify right side
    8,680,201.60x = 101,116,223,122,283.52
  5. Step 5: Solve for x
    x = 101,116,223,122,283.52/8,680,201.60
  6. Step 6: Final answer
    x = 11,649,063.90

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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.