Home / 9,872,648.78-13,624,176.87-5,521,731.66

Finding the Fourth Proportional to 9,872,648.78, 13,624,176.87 and 5,521,731.66

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Solution

The fourth proportional to 9,872,648.78, 13,624,176.87 and 5,521,731.66 is: 7,619,945.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,872,648.78 : 13,624,176.87 = 5,521,731.66 : x
  2. Step 2: Convert to fraction form
    9,872,648.78/13,624,176.87 = 5,521,731.66/x
  3. Step 3: Cross multiply
    9,872,648.78x = 13,624,176.87 × 5,521,731.66
  4. Step 4: Simplify right side
    9,872,648.78x = 75,229,048,764,518.70
  5. Step 5: Solve for x
    x = 75,229,048,764,518.70/9,872,648.78
  6. Step 6: Final answer
    x = 7,619,945.82

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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.