Home / 129,791,996.80-194,687,995.20-66,091,004.80

Finding the Fourth Proportional to 129,791,996.80, 194,687,995.20 and 66,091,004.80

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Solution

The fourth proportional to 129,791,996.80, 194,687,995.20 and 66,091,004.80 is: 99,136,507.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,791,996.80 : 194,687,995.20 = 66,091,004.80 : x
  2. Step 2: Convert to fraction form
    129,791,996.80/194,687,995.20 = 66,091,004.80/x
  3. Step 3: Cross multiply
    129,791,996.80x = 194,687,995.20 × 66,091,004.80
  4. Step 4: Simplify right side
    129,791,996.80x = 12,867,125,225,265,576
  5. Step 5: Solve for x
    x = 12,867,125,225,265,576/129,791,996.80
  6. Step 6: Final answer
    x = 99,136,507.20

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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.