Home / 9,215,579.19-12,717,410.49-5,085,648.39

Finding the Fourth Proportional to 9,215,579.19, 12,717,410.49 and 5,085,648.39

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Solution

The fourth proportional to 9,215,579.19, 12,717,410.49 and 5,085,648.39 is: 7,018,145.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,215,579.19 : 12,717,410.49 = 5,085,648.39 : x
  2. Step 2: Convert to fraction form
    9,215,579.19/12,717,410.49 = 5,085,648.39/x
  3. Step 3: Cross multiply
    9,215,579.19x = 12,717,410.49 × 5,085,648.39
  4. Step 4: Simplify right side
    9,215,579.19x = 64,676,278,183,437.61
  5. Step 5: Solve for x
    x = 64,676,278,183,437.61/9,215,579.19
  6. Step 6: Final answer
    x = 7,018,145.78

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1.5x scale

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.