Home / 20,688,521.44-30,984,951.08-19,971,076.08

Finding the Fourth Proportional to 20,688,521.44, 30,984,951.08 and 19,971,076.08

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Solution

The fourth proportional to 20,688,521.44, 30,984,951.08 and 19,971,076.08 is: 29,910,441.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,688,521.44 : 30,984,951.08 = 19,971,076.08 : x
  2. Step 2: Convert to fraction form
    20,688,521.44/30,984,951.08 = 19,971,076.08/x
  3. Step 3: Cross multiply
    20,688,521.44x = 30,984,951.08 × 19,971,076.08
  4. Step 4: Simplify right side
    20,688,521.44x = 618,802,815,353,758.12
  5. Step 5: Solve for x
    x = 618,802,815,353,758.12/20,688,521.44
  6. Step 6: Final answer
    x = 29,910,441.75

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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.