Home / 7,182,651.42-9,912,019.05-3,919,456.26

Finding the Fourth Proportional to 7,182,651.42, 9,912,019.05 and 3,919,456.26

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Solution

The fourth proportional to 7,182,651.42, 9,912,019.05 and 3,919,456.26 is: 5,408,827.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,182,651.42 : 9,912,019.05 = 3,919,456.26 : x
  2. Step 2: Convert to fraction form
    7,182,651.42/9,912,019.05 = 3,919,456.26/x
  3. Step 3: Cross multiply
    7,182,651.42x = 9,912,019.05 × 3,919,456.26
  4. Step 4: Simplify right side
    7,182,651.42x = 38,849,725,114,761.75
  5. Step 5: Solve for x
    x = 38,849,725,114,761.75/7,182,651.42
  6. Step 6: Final answer
    x = 5,408,827.86

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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.