Home / 19,486,816.20-29,217,782.70-8,131,782.60

Finding the Fourth Proportional to 19,486,816.20, 29,217,782.70 and 8,131,782.60

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Solution

The fourth proportional to 19,486,816.20, 29,217,782.70 and 8,131,782.60 is: 12,192,482.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,486,816.20 : 29,217,782.70 = 8,131,782.60 : x
  2. Step 2: Convert to fraction form
    19,486,816.20/29,217,782.70 = 8,131,782.60/x
  3. Step 3: Cross multiply
    19,486,816.20x = 29,217,782.70 × 8,131,782.60
  4. Step 4: Simplify right side
    19,486,816.20x = 237,592,656,970,441
  5. Step 5: Solve for x
    x = 237,592,656,970,441/19,486,816.20
  6. Step 6: Final answer
    x = 12,192,482.06

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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.