Home / 5,431,228.32-8,146,841.27-1,387,723.71

Finding the Fourth Proportional to 5,431,228.32, 8,146,841.27 and 1,387,723.71

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Solution

The fourth proportional to 5,431,228.32, 8,146,841.27 and 1,387,723.71 is: 2,081,585.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,431,228.32 : 8,146,841.27 = 1,387,723.71 : x
  2. Step 2: Convert to fraction form
    5,431,228.32/8,146,841.27 = 1,387,723.71/x
  3. Step 3: Cross multiply
    5,431,228.32x = 8,146,841.27 × 1,387,723.71
  4. Step 4: Simplify right side
    5,431,228.32x = 11,305,564,785,046.89
  5. Step 5: Solve for x
    x = 11,305,564,785,046.89/5,431,228.32
  6. Step 6: Final answer
    x = 2,081,585.25

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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.