Home / 11,285,508.96-15,578,768.24-7,619,391.76

Finding the Fourth Proportional to 11,285,508.96, 15,578,768.24 and 7,619,391.76

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Solution

The fourth proportional to 11,285,508.96, 15,578,768.24 and 7,619,391.76 is: 10,517,978.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,285,508.96 : 15,578,768.24 = 7,619,391.76 : x
  2. Step 2: Convert to fraction form
    11,285,508.96/15,578,768.24 = 7,619,391.76/x
  3. Step 3: Cross multiply
    11,285,508.96x = 15,578,768.24 × 7,619,391.76
  4. Step 4: Simplify right side
    11,285,508.96x = 118,700,738,358,805.70
  5. Step 5: Solve for x
    x = 118,700,738,358,805.70/11,285,508.96
  6. Step 6: Final answer
    x = 10,517,978.30

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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.