Home / 3,970,780.08-5,443,984.86-3,899,035.12

Finding the Fourth Proportional to 3,970,780.08, 5,443,984.86 and 3,899,035.12

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Solution

The fourth proportional to 3,970,780.08, 5,443,984.86 and 3,899,035.12 is: 5,345,621.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,970,780.08 : 5,443,984.86 = 3,899,035.12 : x
  2. Step 2: Convert to fraction form
    3,970,780.08/5,443,984.86 = 3,899,035.12/x
  3. Step 3: Cross multiply
    3,970,780.08x = 5,443,984.86 × 3,899,035.12
  4. Step 4: Simplify right side
    3,970,780.08x = 21,226,288,161,888.29
  5. Step 5: Solve for x
    x = 21,226,288,161,888.29/3,970,780.08
  6. Step 6: Final answer
    x = 5,345,621.70

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.