Home / 77,384,819.20-115,909,267.20-63,947,891.20

Finding the Fourth Proportional to 77,384,819.20, 115,909,267.20 and 63,947,891.20

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Solution

The fourth proportional to 77,384,819.20, 115,909,267.20 and 63,947,891.20 is: 95,783,039.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,384,819.20 : 115,909,267.20 = 63,947,891.20 : x
  2. Step 2: Convert to fraction form
    77,384,819.20/115,909,267.20 = 63,947,891.20/x
  3. Step 3: Cross multiply
    77,384,819.20x = 115,909,267.20 × 63,947,891.20
  4. Step 4: Simplify right side
    77,384,819.20x = 7,412,153,207,977,329
  5. Step 5: Solve for x
    x = 7,412,153,207,977,329/77,384,819.20
  6. Step 6: Final answer
    x = 95,783,039.68

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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.