Home / 20,128,537.40-30,192,806.10-4,982,468.90

Finding the Fourth Proportional to 20,128,537.40, 30,192,806.10 and 4,982,468.90

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Solution

The fourth proportional to 20,128,537.40, 30,192,806.10 and 4,982,468.90 is: 7,473,703.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,128,537.40 : 30,192,806.10 = 4,982,468.90 : x
  2. Step 2: Convert to fraction form
    20,128,537.40/30,192,806.10 = 4,982,468.90/x
  3. Step 3: Cross multiply
    20,128,537.40x = 30,192,806.10 × 4,982,468.90
  4. Step 4: Simplify right side
    20,128,537.40x = 150,434,717,396,980.31
  5. Step 5: Solve for x
    x = 150,434,717,396,980.31/20,128,537.40
  6. Step 6: Final answer
    x = 7,473,703.35

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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.