Home / 8,979,897.68-12,392,270.04-5,112,418.76

Finding the Fourth Proportional to 8,979,897.68, 12,392,270.04 and 5,112,418.76

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Solution

The fourth proportional to 8,979,897.68, 12,392,270.04 and 5,112,418.76 is: 7,055,144.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,979,897.68 : 12,392,270.04 = 5,112,418.76 : x
  2. Step 2: Convert to fraction form
    8,979,897.68/12,392,270.04 = 5,112,418.76/x
  3. Step 3: Cross multiply
    8,979,897.68x = 12,392,270.04 × 5,112,418.76
  4. Step 4: Simplify right side
    8,979,897.68x = 63,354,473,831,481.95
  5. Step 5: Solve for x
    x = 63,354,473,831,481.95/8,979,897.68
  6. Step 6: Final answer
    x = 7,055,144.29

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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.