Home / 7,139,887.14-9,853,215.48-3,876,839.40

Finding the Fourth Proportional to 7,139,887.14, 9,853,215.48 and 3,876,839.40

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Solution

The fourth proportional to 7,139,887.14, 9,853,215.48 and 3,876,839.40 is: 5,350,131.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,139,887.14 : 9,853,215.48 = 3,876,839.40 : x
  2. Step 2: Convert to fraction form
    7,139,887.14/9,853,215.48 = 3,876,839.40/x
  3. Step 3: Cross multiply
    7,139,887.14x = 9,853,215.48 × 3,876,839.40
  4. Step 4: Simplify right side
    7,139,887.14x = 38,199,333,989,553.91
  5. Step 5: Solve for x
    x = 38,199,333,989,553.91/7,139,887.14
  6. Step 6: Final answer
    x = 5,350,131.35

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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.