Home / 15,276,634.80-21,081,335.49-8,401,116.86

Finding the Fourth Proportional to 15,276,634.80, 21,081,335.49 and 8,401,116.86

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Solution

The fourth proportional to 15,276,634.80, 21,081,335.49 and 8,401,116.86 is: 11,593,309.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,276,634.80 : 21,081,335.49 = 8,401,116.86 : x
  2. Step 2: Convert to fraction form
    15,276,634.80/21,081,335.49 = 8,401,116.86/x
  3. Step 3: Cross multiply
    15,276,634.80x = 21,081,335.49 × 8,401,116.86
  4. Step 4: Simplify right side
    15,276,634.80x = 177,106,762,910,948.69
  5. Step 5: Solve for x
    x = 177,106,762,910,948.69/15,276,634.80
  6. Step 6: Final answer
    x = 11,593,309.99

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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.