Home / 129,965,076.98-194,946,112.50-31,597,340.78

Finding the Fourth Proportional to 129,965,076.98, 194,946,112.50 and 31,597,340.78

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Solution

The fourth proportional to 129,965,076.98, 194,946,112.50 and 31,597,340.78 is: 47,395,645.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,965,076.98 : 194,946,112.50 = 31,597,340.78 : x
  2. Step 2: Convert to fraction form
    129,965,076.98/194,946,112.50 = 31,597,340.78/x
  3. Step 3: Cross multiply
    129,965,076.98x = 194,946,112.50 × 31,597,340.78
  4. Step 4: Simplify right side
    129,965,076.98x = 6,159,778,750,398,718
  5. Step 5: Solve for x
    x = 6,159,778,750,398,718/129,965,076.98
  6. Step 6: Final answer
    x = 47,395,645.77

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.