Home / 8,979,883.45-12,392,250.75-5,112,404.51

Finding the Fourth Proportional to 8,979,883.45, 12,392,250.75 and 5,112,404.51

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Solution

The fourth proportional to 8,979,883.45, 12,392,250.75 and 5,112,404.51 is: 7,055,124.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,979,883.45 : 12,392,250.75 = 5,112,404.51 : x
  2. Step 2: Convert to fraction form
    8,979,883.45/12,392,250.75 = 5,112,404.51/x
  3. Step 3: Cross multiply
    8,979,883.45x = 12,392,250.75 × 5,112,404.51
  4. Step 4: Simplify right side
    8,979,883.45x = 63,354,198,561,389.62
  5. Step 5: Solve for x
    x = 63,354,198,561,389.62/8,979,883.45
  6. Step 6: Final answer
    x = 7,055,124.82

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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.