Home / 27,960,339.10-38,565,391.84-18,663,221.68

Finding the Fourth Proportional to 27,960,339.10, 38,565,391.84 and 18,663,221.68

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Solution

The fourth proportional to 27,960,339.10, 38,565,391.84 and 18,663,221.68 is: 25,741,978.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,960,339.10 : 38,565,391.84 = 18,663,221.68 : x
  2. Step 2: Convert to fraction form
    27,960,339.10/38,565,391.84 = 18,663,221.68/x
  3. Step 3: Cross multiply
    27,960,339.10x = 38,565,391.84 × 18,663,221.68
  4. Step 4: Simplify right side
    27,960,339.10x = 719,754,457,085,983.12
  5. Step 5: Solve for x
    x = 719,754,457,085,983.12/27,960,339.10
  6. Step 6: Final answer
    x = 25,741,978.83

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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.