Home / 8,680,185.60-12,983,414.40-7,788,076.80

Finding the Fourth Proportional to 8,680,185.60, 12,983,414.40 and 7,788,076.80

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Solution

The fourth proportional to 8,680,185.60, 12,983,414.40 and 7,788,076.80 is: 11,649,039.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,680,185.60 : 12,983,414.40 = 7,788,076.80 : x
  2. Step 2: Convert to fraction form
    8,680,185.60/12,983,414.40 = 7,788,076.80/x
  3. Step 3: Cross multiply
    8,680,185.60x = 12,983,414.40 × 7,788,076.80
  4. Step 4: Simplify right side
    8,680,185.60x = 101,115,828,473,425.92
  5. Step 5: Solve for x
    x = 101,115,828,473,425.92/8,680,185.60
  6. Step 6: Final answer
    x = 11,649,039.91

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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.