Home / 71,774,138.80-107,686,091.40-31,413,588.40

Finding the Fourth Proportional to 71,774,138.80, 107,686,091.40 and 31,413,588.40

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Solution

The fourth proportional to 71,774,138.80, 107,686,091.40 and 31,413,588.40 is: 47,131,273.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,774,138.80 : 107,686,091.40 = 31,413,588.40 : x
  2. Step 2: Convert to fraction form
    71,774,138.80/107,686,091.40 = 31,413,588.40/x
  3. Step 3: Cross multiply
    71,774,138.80x = 107,686,091.40 × 31,413,588.40
  4. Step 4: Simplify right side
    71,774,138.80x = 3,382,806,551,644,380
  5. Step 5: Solve for x
    x = 3,382,806,551,644,380/71,774,138.80
  6. Step 6: Final answer
    x = 47,131,273.30

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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.