Home / 90,825,872.40-136,238,808.60-74,683,352.03

Finding the Fourth Proportional to 90,825,872.40, 136,238,808.60 and 74,683,352.03

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Solution

The fourth proportional to 90,825,872.40, 136,238,808.60 and 74,683,352.03 is: 112,025,028.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,825,872.40 : 136,238,808.60 = 74,683,352.03 : x
  2. Step 2: Convert to fraction form
    90,825,872.40/136,238,808.60 = 74,683,352.03/x
  3. Step 3: Cross multiply
    90,825,872.40x = 136,238,808.60 × 74,683,352.03
  4. Step 4: Simplify right side
    90,825,872.40x = 10,174,770,902,140,398
  5. Step 5: Solve for x
    x = 10,174,770,902,140,398/90,825,872.40
  6. Step 6: Final answer
    x = 112,025,028.04

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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.