Home / 20,414,718.40-30,622,077.60-19,721,876.80

Finding the Fourth Proportional to 20,414,718.40, 30,622,077.60 and 19,721,876.80

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Solution

The fourth proportional to 20,414,718.40, 30,622,077.60 and 19,721,876.80 is: 29,582,815.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,414,718.40 : 30,622,077.60 = 19,721,876.80 : x
  2. Step 2: Convert to fraction form
    20,414,718.40/30,622,077.60 = 19,721,876.80/x
  3. Step 3: Cross multiply
    20,414,718.40x = 30,622,077.60 × 19,721,876.80
  4. Step 4: Simplify right side
    20,414,718.40x = 603,924,841,787,239.75
  5. Step 5: Solve for x
    x = 603,924,841,787,239.75/20,414,718.40
  6. Step 6: Final answer
    x = 29,582,815.20

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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.