Home / 21,032,443.10-31,548,664.65-20,040,419.90

Finding the Fourth Proportional to 21,032,443.10, 31,548,664.65 and 20,040,419.90

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Solution

The fourth proportional to 21,032,443.10, 31,548,664.65 and 20,040,419.90 is: 30,060,629.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,032,443.10 : 31,548,664.65 = 20,040,419.90 : x
  2. Step 2: Convert to fraction form
    21,032,443.10/31,548,664.65 = 20,040,419.90/x
  3. Step 3: Cross multiply
    21,032,443.10x = 31,548,664.65 × 20,040,419.90
  4. Step 4: Simplify right side
    21,032,443.10x = 632,248,486,870,286.50
  5. Step 5: Solve for x
    x = 632,248,486,870,286.50/21,032,443.10
  6. Step 6: Final answer
    x = 30,060,629.85

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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.