Home / 7,167,151.88-9,890,670.42-3,947,887.88

Finding the Fourth Proportional to 7,167,151.88, 9,890,670.42 and 3,947,887.88

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Solution

The fourth proportional to 7,167,151.88, 9,890,670.42 and 3,947,887.88 is: 5,448,085.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,167,151.88 : 9,890,670.42 = 3,947,887.88 : x
  2. Step 2: Convert to fraction form
    7,167,151.88/9,890,670.42 = 3,947,887.88/x
  3. Step 3: Cross multiply
    7,167,151.88x = 9,890,670.42 × 3,947,887.88
  4. Step 4: Simplify right side
    7,167,151.88x = 39,047,257,876,192.51
  5. Step 5: Solve for x
    x = 39,047,257,876,192.51/7,167,151.88
  6. Step 6: Final answer
    x = 5,448,085.73

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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.