Home / 129,762,114.20-194,643,171.30-81,389,173.40

Finding the Fourth Proportional to 129,762,114.20, 194,643,171.30 and 81,389,173.40

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Solution

The fourth proportional to 129,762,114.20, 194,643,171.30 and 81,389,173.40 is: 122,083,760.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,762,114.20 : 194,643,171.30 = 81,389,173.40 : x
  2. Step 2: Convert to fraction form
    129,762,114.20/194,643,171.30 = 81,389,173.40/x
  3. Step 3: Cross multiply
    129,762,114.20x = 194,643,171.30 × 81,389,173.40
  4. Step 4: Simplify right side
    129,762,114.20x = 15,841,846,820,061,606
  5. Step 5: Solve for x
    x = 15,841,846,820,061,606/129,762,114.20
  6. Step 6: Final answer
    x = 122,083,760.10

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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.