Home / 9,991,511.78-13,786,818.73-5,580,693.90

Finding the Fourth Proportional to 9,991,511.78, 13,786,818.73 and 5,580,693.90

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Solution

The fourth proportional to 9,991,511.78, 13,786,818.73 and 5,580,693.90 is: 7,700,537.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,991,511.78 : 13,786,818.73 = 5,580,693.90 : x
  2. Step 2: Convert to fraction form
    9,991,511.78/13,786,818.73 = 5,580,693.90/x
  3. Step 3: Cross multiply
    9,991,511.78x = 13,786,818.73 × 5,580,693.90
  4. Step 4: Simplify right side
    9,991,511.78x = 76,940,015,193,892.61
  5. Step 5: Solve for x
    x = 76,940,015,193,892.61/9,991,511.78
  6. Step 6: Final answer
    x = 7,700,537.91

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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.