Home / 7,971,310.40-11,956,965.60-7,896,660.80

Finding the Fourth Proportional to 7,971,310.40, 11,956,965.60 and 7,896,660.80

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Solution

The fourth proportional to 7,971,310.40, 11,956,965.60 and 7,896,660.80 is: 11,844,991.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,971,310.40 : 11,956,965.60 = 7,896,660.80 : x
  2. Step 2: Convert to fraction form
    7,971,310.40/11,956,965.60 = 7,896,660.80/x
  3. Step 3: Cross multiply
    7,971,310.40x = 11,956,965.60 × 7,896,660.80
  4. Step 4: Simplify right side
    7,971,310.40x = 94,420,101,540,468.47
  5. Step 5: Solve for x
    x = 94,420,101,540,468.47/7,971,310.40
  6. Step 6: Final answer
    x = 11,844,991.20

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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.