Home / 28,103,209.43-38,770,553.43-18,813,772.40

Finding the Fourth Proportional to 28,103,209.43, 38,770,553.43 and 18,813,772.40

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Solution

The fourth proportional to 28,103,209.43, 38,770,553.43 and 18,813,772.40 is: 25,955,055.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,103,209.43 : 38,770,553.43 = 18,813,772.40 : x
  2. Step 2: Convert to fraction form
    28,103,209.43/38,770,553.43 = 18,813,772.40/x
  3. Step 3: Cross multiply
    28,103,209.43x = 38,770,553.43 × 18,813,772.40
  4. Step 4: Simplify right side
    28,103,209.43x = 729,420,367,860,206.50
  5. Step 5: Solve for x
    x = 729,420,367,860,206.50/28,103,209.43
  6. Step 6: Final answer
    x = 25,955,055.77

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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.