Home / 28,103,197.50-38,770,536.98-18,813,760.48

Finding the Fourth Proportional to 28,103,197.50, 38,770,536.98 and 18,813,760.48

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Solution

The fourth proportional to 28,103,197.50, 38,770,536.98 and 18,813,760.48 is: 25,955,039.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,103,197.50 : 38,770,536.98 = 18,813,760.48 : x
  2. Step 2: Convert to fraction form
    28,103,197.50/38,770,536.98 = 18,813,760.48/x
  3. Step 3: Cross multiply
    28,103,197.50x = 38,770,536.98 × 18,813,760.48
  4. Step 4: Simplify right side
    28,103,197.50x = 729,419,596,518,200.12
  5. Step 5: Solve for x
    x = 729,419,596,518,200.12/28,103,197.50
  6. Step 6: Final answer
    x = 25,955,039.33

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1.5x scale

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.