Home / 76,971,392.08-115,456,124.68-18,679,552.90

Finding the Fourth Proportional to 76,971,392.08, 115,456,124.68 and 18,679,552.90

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Solution

The fourth proportional to 76,971,392.08, 115,456,124.68 and 18,679,552.90 is: 28,019,095.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,971,392.08 : 115,456,124.68 = 18,679,552.90 : x
  2. Step 2: Convert to fraction form
    76,971,392.08/115,456,124.68 = 18,679,552.90/x
  3. Step 3: Cross multiply
    76,971,392.08x = 115,456,124.68 × 18,679,552.90
  4. Step 4: Simplify right side
    76,971,392.08x = 2,156,668,788,253,716.50
  5. Step 5: Solve for x
    x = 2,156,668,788,253,716.50/76,971,392.08
  6. Step 6: Final answer
    x = 28,019,095.54

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.