Home / 139,234,451.29-192,145,072.19-76,510,565.48

Finding the Fourth Proportional to 139,234,451.29, 192,145,072.19 and 76,510,565.48

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Solution

The fourth proportional to 139,234,451.29, 192,145,072.19 and 76,510,565.48 is: 105,585,420.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,234,451.29 : 192,145,072.19 = 76,510,565.48 : x
  2. Step 2: Convert to fraction form
    139,234,451.29/192,145,072.19 = 76,510,565.48/x
  3. Step 3: Cross multiply
    139,234,451.29x = 192,145,072.19 × 76,510,565.48
  4. Step 4: Simplify right side
    139,234,451.29x = 14,701,128,127,452,322
  5. Step 5: Solve for x
    x = 14,701,128,127,452,322/139,234,451.29
  6. Step 6: Final answer
    x = 105,585,420.79

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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.