Home / 3,912,416.59-5,398,864.50-2,169,921.61

Finding the Fourth Proportional to 3,912,416.59, 5,398,864.50 and 2,169,921.61

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Solution

The fourth proportional to 3,912,416.59, 5,398,864.50 and 2,169,921.61 is: 2,994,341.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,912,416.59 : 5,398,864.50 = 2,169,921.61 : x
  2. Step 2: Convert to fraction form
    3,912,416.59/5,398,864.50 = 2,169,921.61/x
  3. Step 3: Cross multiply
    3,912,416.59x = 5,398,864.50 × 2,169,921.61
  4. Step 4: Simplify right side
    3,912,416.59x = 11,715,112,720,323.21
  5. Step 5: Solve for x
    x = 11,715,112,720,323.21/3,912,416.59
  6. Step 6: Final answer
    x = 2,994,341.85

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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.