Home / 12,687,780.64-17,508,668.28-6,886,437.76

Finding the Fourth Proportional to 12,687,780.64, 17,508,668.28 and 6,886,437.76

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Solution

The fourth proportional to 12,687,780.64, 17,508,668.28 and 6,886,437.76 is: 9,503,029.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,687,780.64 : 17,508,668.28 = 6,886,437.76 : x
  2. Step 2: Convert to fraction form
    12,687,780.64/17,508,668.28 = 6,886,437.76/x
  3. Step 3: Cross multiply
    12,687,780.64x = 17,508,668.28 × 6,886,437.76
  4. Step 4: Simplify right side
    12,687,780.64x = 120,572,354,370,706.25
  5. Step 5: Solve for x
    x = 120,572,354,370,706.25/12,687,780.64
  6. Step 6: Final answer
    x = 9,503,029.55

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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.