Home / 31,427,241.12-47,127,116.16-15,855,486.72

Finding the Fourth Proportional to 31,427,241.12, 47,127,116.16 and 15,855,486.72

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Solution

The fourth proportional to 31,427,241.12, 47,127,116.16 and 15,855,486.72 is: 23,776,295.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,427,241.12 : 47,127,116.16 = 15,855,486.72 : x
  2. Step 2: Convert to fraction form
    31,427,241.12/47,127,116.16 = 15,855,486.72/x
  3. Step 3: Cross multiply
    31,427,241.12x = 47,127,116.16 × 15,855,486.72
  4. Step 4: Simplify right side
    31,427,241.12x = 747,223,364,426,777.38
  5. Step 5: Solve for x
    x = 747,223,364,426,777.38/31,427,241.12
  6. Step 6: Final answer
    x = 23,776,295.27

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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.