Home / 87,417,472.78-120,632,949.89-48,258,408.70

Finding the Fourth Proportional to 87,417,472.78, 120,632,949.89 and 48,258,408.70

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Solution

The fourth proportional to 87,417,472.78, 120,632,949.89 and 48,258,408.70 is: 66,594,858.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,417,472.78 : 120,632,949.89 = 48,258,408.70 : x
  2. Step 2: Convert to fraction form
    87,417,472.78/120,632,949.89 = 48,258,408.70/x
  3. Step 3: Cross multiply
    87,417,472.78x = 120,632,949.89 × 48,258,408.70
  4. Step 4: Simplify right side
    87,417,472.78x = 5,821,554,197,995,721
  5. Step 5: Solve for x
    x = 5,821,554,197,995,721/87,417,472.78
  6. Step 6: Final answer
    x = 66,594,858.13

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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.