Home / 7,220,292.96-9,964,132.20-3,956,890.44

Finding the Fourth Proportional to 7,220,292.96, 9,964,132.20 and 3,956,890.44

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Solution

The fourth proportional to 7,220,292.96, 9,964,132.20 and 3,956,890.44 is: 5,460,578.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,220,292.96 : 9,964,132.20 = 3,956,890.44 : x
  2. Step 2: Convert to fraction form
    7,220,292.96/9,964,132.20 = 3,956,890.44/x
  3. Step 3: Cross multiply
    7,220,292.96x = 9,964,132.20 × 3,956,890.44
  4. Step 4: Simplify right side
    7,220,292.96x = 39,426,979,445,076.16
  5. Step 5: Solve for x
    x = 39,426,979,445,076.16/7,220,292.96
  6. Step 6: Final answer
    x = 5,460,578.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.