Home / 80,960,788.06-121,314,079.12-55,065,439.60

Finding the Fourth Proportional to 80,960,788.06, 121,314,079.12 and 55,065,439.60

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Solution

The fourth proportional to 80,960,788.06, 121,314,079.12 and 55,065,439.60 is: 82,511,710.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,960,788.06 : 121,314,079.12 = 55,065,439.60 : x
  2. Step 2: Convert to fraction form
    80,960,788.06/121,314,079.12 = 55,065,439.60/x
  3. Step 3: Cross multiply
    80,960,788.06x = 121,314,079.12 × 55,065,439.60
  4. Step 4: Simplify right side
    80,960,788.06x = 6,680,213,096,411,982
  5. Step 5: Solve for x
    x = 6,680,213,096,411,982/80,960,788.06
  6. Step 6: Final answer
    x = 82,511,710.38

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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.