Home / 31,709,863.38-43,758,867.12-18,657,967.62

Finding the Fourth Proportional to 31,709,863.38, 43,758,867.12 and 18,657,967.62

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Solution

The fourth proportional to 31,709,863.38, 43,758,867.12 and 18,657,967.62 is: 25,747,557.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,709,863.38 : 43,758,867.12 = 18,657,967.62 : x
  2. Step 2: Convert to fraction form
    31,709,863.38/43,758,867.12 = 18,657,967.62/x
  3. Step 3: Cross multiply
    31,709,863.38x = 43,758,867.12 × 18,657,967.62
  4. Step 4: Simplify right side
    31,709,863.38x = 816,451,525,812,842.62
  5. Step 5: Solve for x
    x = 816,451,525,812,842.62/31,709,863.38
  6. Step 6: Final answer
    x = 25,747,557.35

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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.