Home / 87,416,931.78-120,635,544.51-48,258,762.39

Finding the Fourth Proportional to 87,416,931.78, 120,635,544.51 and 48,258,762.39

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Solution

The fourth proportional to 87,416,931.78, 120,635,544.51 and 48,258,762.39 is: 66,597,190.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,416,931.78 : 120,635,544.51 = 48,258,762.39 : x
  2. Step 2: Convert to fraction form
    87,416,931.78/120,635,544.51 = 48,258,762.39/x
  3. Step 3: Cross multiply
    87,416,931.78x = 120,635,544.51 × 48,258,762.39
  4. Step 4: Simplify right side
    87,416,931.78x = 5,821,722,078,296,359
  5. Step 5: Solve for x
    x = 5,821,722,078,296,359/87,416,931.78
  6. Step 6: Final answer
    x = 66,597,190.72

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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.