Home / 18,724,165.40-28,086,248.10-11,512,314.20

Finding the Fourth Proportional to 18,724,165.40, 28,086,248.10 and 11,512,314.20

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Solution

The fourth proportional to 18,724,165.40, 28,086,248.10 and 11,512,314.20 is: 17,268,471.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,724,165.40 : 28,086,248.10 = 11,512,314.20 : x
  2. Step 2: Convert to fraction form
    18,724,165.40/28,086,248.10 = 11,512,314.20/x
  3. Step 3: Cross multiply
    18,724,165.40x = 28,086,248.10 × 11,512,314.20
  4. Step 4: Simplify right side
    18,724,165.40x = 323,337,712,826,353
  5. Step 5: Solve for x
    x = 323,337,712,826,353/18,724,165.40
  6. Step 6: Final answer
    x = 17,268,471.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.