Home / 9,967,761.78-13,755,511.78-5,384,083.20

Finding the Fourth Proportional to 9,967,761.78, 13,755,511.78 and 5,384,083.20

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Solution

The fourth proportional to 9,967,761.78, 13,755,511.78 and 5,384,083.20 is: 7,430,035.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,967,761.78 : 13,755,511.78 = 5,384,083.20 : x
  2. Step 2: Convert to fraction form
    9,967,761.78/13,755,511.78 = 5,384,083.20/x
  3. Step 3: Cross multiply
    9,967,761.78x = 13,755,511.78 × 5,384,083.20
  4. Step 4: Simplify right side
    9,967,761.78x = 74,060,819,882,100.09
  5. Step 5: Solve for x
    x = 74,060,819,882,100.09/9,967,761.78
  6. Step 6: Final answer
    x = 7,430,035.10

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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.