Home / 2,847,999.57-3,930,799.65-2,158,468.72

Finding the Fourth Proportional to 2,847,999.57, 3,930,799.65 and 2,158,468.72

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Solution

The fourth proportional to 2,847,999.57, 3,930,799.65 and 2,158,468.72 is: 2,979,111.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,847,999.57 : 3,930,799.65 = 2,158,468.72 : x
  2. Step 2: Convert to fraction form
    2,847,999.57/3,930,799.65 = 2,158,468.72/x
  3. Step 3: Cross multiply
    2,847,999.57x = 3,930,799.65 × 2,158,468.72
  4. Step 4: Simplify right side
    2,847,999.57x = 8,484,508,089,616.32
  5. Step 5: Solve for x
    x = 8,484,508,089,616.32/2,847,999.57
  6. Step 6: Final answer
    x = 2,979,111.43

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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.