Home / 142,446,361.80-196,513,545.78-83,682,507.72

Finding the Fourth Proportional to 142,446,361.80, 196,513,545.78 and 83,682,507.72

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Solution

The fourth proportional to 142,446,361.80, 196,513,545.78 and 83,682,507.72 is: 115,445,183.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,446,361.80 : 196,513,545.78 = 83,682,507.72 : x
  2. Step 2: Convert to fraction form
    142,446,361.80/196,513,545.78 = 83,682,507.72/x
  3. Step 3: Cross multiply
    142,446,361.80x = 196,513,545.78 × 83,682,507.72
  4. Step 4: Simplify right side
    142,446,361.80x = 16,444,746,311,819,424
  5. Step 5: Solve for x
    x = 16,444,746,311,819,424/142,446,361.80
  6. Step 6: Final answer
    x = 115,445,183.04

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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.