Home / 7,864,198.52-10,850,400.86-5,072,140.35

Finding the Fourth Proportional to 7,864,198.52, 10,850,400.86 and 5,072,140.35

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Solution

The fourth proportional to 7,864,198.52, 10,850,400.86 and 5,072,140.35 is: 6,998,139.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,864,198.52 : 10,850,400.86 = 5,072,140.35 : x
  2. Step 2: Convert to fraction form
    7,864,198.52/10,850,400.86 = 5,072,140.35/x
  3. Step 3: Cross multiply
    7,864,198.52x = 10,850,400.86 × 5,072,140.35
  4. Step 4: Simplify right side
    7,864,198.52x = 55,034,755,990,320
  5. Step 5: Solve for x
    x = 55,034,755,990,320/7,864,198.52
  6. Step 6: Final answer
    x = 6,998,139.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.