Home / 129,964,991.42-194,945,984.25-31,597,255.22

Finding the Fourth Proportional to 129,964,991.42, 194,945,984.25 and 31,597,255.22

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Solution

The fourth proportional to 129,964,991.42, 194,945,984.25 and 31,597,255.22 is: 47,395,517.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,964,991.42 : 194,945,984.25 = 31,597,255.22 : x
  2. Step 2: Convert to fraction form
    129,964,991.42/194,945,984.25 = 31,597,255.22/x
  3. Step 3: Cross multiply
    129,964,991.42x = 194,945,984.25 × 31,597,255.22
  4. Step 4: Simplify right side
    129,964,991.42x = 6,159,758,018,464,507
  5. Step 5: Solve for x
    x = 6,159,758,018,464,507/129,964,991.42
  6. Step 6: Final answer
    x = 47,395,517.45

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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.