Home / 51,280,010.40-76,920,015.60-17,193,136.80

Finding the Fourth Proportional to 51,280,010.40, 76,920,015.60 and 17,193,136.80

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Solution

The fourth proportional to 51,280,010.40, 76,920,015.60 and 17,193,136.80 is: 25,789,705.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,280,010.40 : 76,920,015.60 = 17,193,136.80 : x
  2. Step 2: Convert to fraction form
    51,280,010.40/76,920,015.60 = 17,193,136.80/x
  3. Step 3: Cross multiply
    51,280,010.40x = 76,920,015.60 × 17,193,136.80
  4. Step 4: Simplify right side
    51,280,010.40x = 1,322,496,350,868,934
  5. Step 5: Solve for x
    x = 1,322,496,350,868,934/51,280,010.40
  6. Step 6: Final answer
    x = 25,789,705.20

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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.