Home / 18,987,364.92-28,499,759.46-13,528,523.64

Finding the Fourth Proportional to 18,987,364.92, 28,499,759.46 and 13,528,523.64

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Solution

The fourth proportional to 18,987,364.92, 28,499,759.46 and 13,528,523.64 is: 20,306,117.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,987,364.92 : 28,499,759.46 = 13,528,523.64 : x
  2. Step 2: Convert to fraction form
    18,987,364.92/28,499,759.46 = 13,528,523.64/x
  3. Step 3: Cross multiply
    18,987,364.92x = 28,499,759.46 × 13,528,523.64
  4. Step 4: Simplify right side
    18,987,364.92x = 385,559,669,588,923.69
  5. Step 5: Solve for x
    x = 385,559,669,588,923.69/18,987,364.92
  6. Step 6: Final answer
    x = 20,306,117.84

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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.