Home / 8,297,965.10-12,446,947.65-5,428,183.70

Finding the Fourth Proportional to 8,297,965.10, 12,446,947.65 and 5,428,183.70

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Solution

The fourth proportional to 8,297,965.10, 12,446,947.65 and 5,428,183.70 is: 8,142,275.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,297,965.10 : 12,446,947.65 = 5,428,183.70 : x
  2. Step 2: Convert to fraction form
    8,297,965.10/12,446,947.65 = 5,428,183.70/x
  3. Step 3: Cross multiply
    8,297,965.10x = 12,446,947.65 × 5,428,183.70
  4. Step 4: Simplify right side
    8,297,965.10x = 67,564,318,348,483.31
  5. Step 5: Solve for x
    x = 67,564,318,348,483.31/8,297,965.10
  6. Step 6: Final answer
    x = 8,142,275.55

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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.