Home / 77,376,865.20-115,897,336.20-63,939,937.20

Finding the Fourth Proportional to 77,376,865.20, 115,897,336.20 and 63,939,937.20

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Solution

The fourth proportional to 77,376,865.20, 115,897,336.20 and 63,939,937.20 is: 95,771,111.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,376,865.20 : 115,897,336.20 = 63,939,937.20 : x
  2. Step 2: Convert to fraction form
    77,376,865.20/115,897,336.20 = 63,939,937.20/x
  3. Step 3: Cross multiply
    77,376,865.20x = 115,897,336.20 × 63,939,937.20
  4. Step 4: Simplify right side
    77,376,865.20x = 7,410,468,398,275,287
  5. Step 5: Solve for x
    x = 7,410,468,398,275,287/77,376,865.20
  6. Step 6: Final answer
    x = 95,771,111.68

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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.