Home / 313,465,868.15-432,583,174.82-172,339,489.85

Finding the Fourth Proportional to 313,465,868.15, 432,583,174.82 and 172,339,489.85

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Solution

The fourth proportional to 313,465,868.15, 432,583,174.82 and 172,339,489.85 is: 237,828,648.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,465,868.15 : 432,583,174.82 = 172,339,489.85 : x
  2. Step 2: Convert to fraction form
    313,465,868.15/432,583,174.82 = 172,339,489.85/x
  3. Step 3: Cross multiply
    313,465,868.15x = 432,583,174.82 × 172,339,489.85
  4. Step 4: Simplify right side
    313,465,868.15x = 74,551,163,664,440,096
  5. Step 5: Solve for x
    x = 74,551,163,664,440,096/313,465,868.15
  6. Step 6: Final answer
    x = 237,828,648.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.