Home / 80,842,786.20-121,265,216.10-26,990,098.20

Finding the Fourth Proportional to 80,842,786.20, 121,265,216.10 and 26,990,098.20

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Solution

The fourth proportional to 80,842,786.20, 121,265,216.10 and 26,990,098.20 is: 40,485,493.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,842,786.20 : 121,265,216.10 = 26,990,098.20 : x
  2. Step 2: Convert to fraction form
    80,842,786.20/121,265,216.10 = 26,990,098.20/x
  3. Step 3: Cross multiply
    80,842,786.20x = 121,265,216.10 × 26,990,098.20
  4. Step 4: Simplify right side
    80,842,786.20x = 3,272,960,090,783,221
  5. Step 5: Solve for x
    x = 3,272,960,090,783,221/80,842,786.20
  6. Step 6: Final answer
    x = 40,485,493.45

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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.