Home / 207,178,128.20-310,767,192.30-99,682,704.20

Finding the Fourth Proportional to 207,178,128.20, 310,767,192.30 and 99,682,704.20

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Solution

The fourth proportional to 207,178,128.20, 310,767,192.30 and 99,682,704.20 is: 149,524,056.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,178,128.20 : 310,767,192.30 = 99,682,704.20 : x
  2. Step 2: Convert to fraction form
    207,178,128.20/310,767,192.30 = 99,682,704.20/x
  3. Step 3: Cross multiply
    207,178,128.20x = 310,767,192.30 × 99,682,704.20
  4. Step 4: Simplify right side
    207,178,128.20x = 30,978,114,105,105,420
  5. Step 5: Solve for x
    x = 30,978,114,105,105,420/207,178,128.20
  6. Step 6: Final answer
    x = 149,524,056.30

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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.