Home / 31,115,577.72-42,938,371.86-17,176,633.65

Finding the Fourth Proportional to 31,115,577.72, 42,938,371.86 and 17,176,633.65

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Solution

The fourth proportional to 31,115,577.72, 42,938,371.86 and 17,176,633.65 is: 23,703,133.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,115,577.72 : 42,938,371.86 = 17,176,633.65 : x
  2. Step 2: Convert to fraction form
    31,115,577.72/42,938,371.86 = 17,176,633.65/x
  3. Step 3: Cross multiply
    31,115,577.72x = 42,938,371.86 × 17,176,633.65
  4. Step 4: Simplify right side
    31,115,577.72x = 737,536,682,966,689
  5. Step 5: Solve for x
    x = 737,536,682,966,689/31,115,577.72
  6. Step 6: Final answer
    x = 23,703,133.19

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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.