Home / 7,158,313.76-9,878,326.56-3,895,193.12

Finding the Fourth Proportional to 7,158,313.76, 9,878,326.56 and 3,895,193.12

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Solution

The fourth proportional to 7,158,313.76, 9,878,326.56 and 3,895,193.12 is: 5,375,286.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,158,313.76 : 9,878,326.56 = 3,895,193.12 : x
  2. Step 2: Convert to fraction form
    7,158,313.76/9,878,326.56 = 3,895,193.12/x
  3. Step 3: Cross multiply
    7,158,313.76x = 9,878,326.56 × 3,895,193.12
  4. Step 4: Simplify right side
    7,158,313.76x = 38,477,989,653,625.27
  5. Step 5: Solve for x
    x = 38,477,989,653,625.27/7,158,313.76
  6. Step 6: Final answer
    x = 5,375,286.83

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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.