Home / 3,888,002.91-5,365,447.38-2,169,123.78

Finding the Fourth Proportional to 3,888,002.91, 5,365,447.38 and 2,169,123.78

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Solution

The fourth proportional to 3,888,002.91, 5,365,447.38 and 2,169,123.78 is: 2,993,392.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,888,002.91 : 5,365,447.38 = 2,169,123.78 : x
  2. Step 2: Convert to fraction form
    3,888,002.91/5,365,447.38 = 2,169,123.78/x
  3. Step 3: Cross multiply
    3,888,002.91x = 5,365,447.38 × 2,169,123.78
  4. Step 4: Simplify right side
    3,888,002.91x = 11,638,319,502,296.70
  5. Step 5: Solve for x
    x = 11,638,319,502,296.70/3,888,002.91
  6. Step 6: Final answer
    x = 2,993,392.69

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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.