Home / 20,357,289.66-28,092,744.87-11,189,735.42

Finding the Fourth Proportional to 20,357,289.66, 28,092,744.87 and 11,189,735.42

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Solution

The fourth proportional to 20,357,289.66, 28,092,744.87 and 11,189,735.42 is: 15,441,661.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,357,289.66 : 28,092,744.87 = 11,189,735.42 : x
  2. Step 2: Convert to fraction form
    20,357,289.66/28,092,744.87 = 11,189,735.42/x
  3. Step 3: Cross multiply
    20,357,289.66x = 28,092,744.87 × 11,189,735.42
  4. Step 4: Simplify right side
    20,357,289.66x = 314,350,382,316,862.31
  5. Step 5: Solve for x
    x = 314,350,382,316,862.31/20,357,289.66
  6. Step 6: Final answer
    x = 15,441,661.81

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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.