Home / 40,011,863.12-55,216,636.20-21,677,148.62

Finding the Fourth Proportional to 40,011,863.12, 55,216,636.20 and 21,677,148.62

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Solution

The fourth proportional to 40,011,863.12, 55,216,636.20 and 21,677,148.62 is: 29,914,608.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,011,863.12 : 55,216,636.20 = 21,677,148.62 : x
  2. Step 2: Convert to fraction form
    40,011,863.12/55,216,636.20 = 21,677,148.62/x
  3. Step 3: Cross multiply
    40,011,863.12x = 55,216,636.20 × 21,677,148.62
  4. Step 4: Simplify right side
    40,011,863.12x = 1,196,939,229,203,872.25
  5. Step 5: Solve for x
    x = 1,196,939,229,203,872.25/40,011,863.12
  6. Step 6: Final answer
    x = 29,914,608.72

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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.