Home / 15,208,759.60-20,988,928.68-8,684,484.76

Finding the Fourth Proportional to 15,208,759.60, 20,988,928.68 and 8,684,484.76

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Solution

The fourth proportional to 15,208,759.60, 20,988,928.68 and 8,684,484.76 is: 11,985,068.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,208,759.60 : 20,988,928.68 = 8,684,484.76 : x
  2. Step 2: Convert to fraction form
    15,208,759.60/20,988,928.68 = 8,684,484.76/x
  3. Step 3: Cross multiply
    15,208,759.60x = 20,988,928.68 × 8,684,484.76
  4. Step 4: Simplify right side
    15,208,759.60x = 182,278,031,250,186.91
  5. Step 5: Solve for x
    x = 182,278,031,250,186.91/15,208,759.60
  6. Step 6: Final answer
    x = 11,985,068.87

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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.