Home / 8,455,428.20-12,683,081.55-2,065,621.70

Finding the Fourth Proportional to 8,455,428.20, 12,683,081.55 and 2,065,621.70

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Solution

The fourth proportional to 8,455,428.20, 12,683,081.55 and 2,065,621.70 is: 3,098,417.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,455,428.20 : 12,683,081.55 = 2,065,621.70 : x
  2. Step 2: Convert to fraction form
    8,455,428.20/12,683,081.55 = 2,065,621.70/x
  3. Step 3: Cross multiply
    8,455,428.20x = 12,683,081.55 × 2,065,621.70
  4. Step 4: Simplify right side
    8,455,428.20x = 26,198,448,472,549.64
  5. Step 5: Solve for x
    x = 26,198,448,472,549.64/8,455,428.20
  6. Step 6: Final answer
    x = 3,098,417.71

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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.