Home / 20,136,921.10-30,221,128.05-9,355,557.85

Finding the Fourth Proportional to 20,136,921.10, 30,221,128.05 and 9,355,557.85

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Solution

The fourth proportional to 20,136,921.10, 30,221,128.05 and 9,355,557.85 is: 14,040,652.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,136,921.10 : 30,221,128.05 = 9,355,557.85 : x
  2. Step 2: Convert to fraction form
    20,136,921.10/30,221,128.05 = 9,355,557.85/x
  3. Step 3: Cross multiply
    20,136,921.10x = 30,221,128.05 × 9,355,557.85
  4. Step 4: Simplify right side
    20,136,921.10x = 282,735,511,764,032.69
  5. Step 5: Solve for x
    x = 282,735,511,764,032.69/20,136,921.10
  6. Step 6: Final answer
    x = 14,040,652.51

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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.