Home / 7,877,246.40-11,815,869.60-6,743,505.60

Finding the Fourth Proportional to 7,877,246.40, 11,815,869.60 and 6,743,505.60

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Solution

The fourth proportional to 7,877,246.40, 11,815,869.60 and 6,743,505.60 is: 10,115,258.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,877,246.40 : 11,815,869.60 = 6,743,505.60 : x
  2. Step 2: Convert to fraction form
    7,877,246.40/11,815,869.60 = 6,743,505.60/x
  3. Step 3: Cross multiply
    7,877,246.40x = 11,815,869.60 × 6,743,505.60
  4. Step 4: Simplify right side
    7,877,246.40x = 79,680,382,816,469.75
  5. Step 5: Solve for x
    x = 79,680,382,816,469.75/7,877,246.40
  6. Step 6: Final answer
    x = 10,115,258.40

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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.