Home / 8,199,266.40-12,269,869.20-7,145,877.60

Finding the Fourth Proportional to 8,199,266.40, 12,269,869.20 and 7,145,877.60

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Solution

The fourth proportional to 8,199,266.40, 12,269,869.20 and 7,145,877.60 is: 10,693,515.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,199,266.40 : 12,269,869.20 = 7,145,877.60 : x
  2. Step 2: Convert to fraction form
    8,199,266.40/12,269,869.20 = 7,145,877.60/x
  3. Step 3: Cross multiply
    8,199,266.40x = 12,269,869.20 × 7,145,877.60
  4. Step 4: Simplify right side
    8,199,266.40x = 87,678,983,471,209.91
  5. Step 5: Solve for x
    x = 87,678,983,471,209.91/8,199,266.40
  6. Step 6: Final answer
    x = 10,693,515.64

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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.