Home / 7,877,219.80-11,815,829.70-7,261,360.60

Finding the Fourth Proportional to 7,877,219.80, 11,815,829.70 and 7,261,360.60

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Solution

The fourth proportional to 7,877,219.80, 11,815,829.70 and 7,261,360.60 is: 10,892,040.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,877,219.80 : 11,815,829.70 = 7,261,360.60 : x
  2. Step 2: Convert to fraction form
    7,877,219.80/11,815,829.70 = 7,261,360.60/x
  3. Step 3: Cross multiply
    7,877,219.80x = 11,815,829.70 × 7,261,360.60
  4. Step 4: Simplify right side
    7,877,219.80x = 85,799,000,239,889.81
  5. Step 5: Solve for x
    x = 85,799,000,239,889.81/7,877,219.80
  6. Step 6: Final answer
    x = 10,892,040.90

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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.