Home / 28,706,879.12-39,616,449.84-15,654,852.18

Finding the Fourth Proportional to 28,706,879.12, 39,616,449.84 and 15,654,852.18

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Solution

The fourth proportional to 28,706,879.12, 39,616,449.84 and 15,654,852.18 is: 21,604,217.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,706,879.12 : 39,616,449.84 = 15,654,852.18 : x
  2. Step 2: Convert to fraction form
    28,706,879.12/39,616,449.84 = 15,654,852.18/x
  3. Step 3: Cross multiply
    28,706,879.12x = 39,616,449.84 × 15,654,852.18
  4. Step 4: Simplify right side
    28,706,879.12x = 620,189,666,141,584.75
  5. Step 5: Solve for x
    x = 620,189,666,141,584.75/28,706,879.12
  6. Step 6: Final answer
    x = 21,604,217.71

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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.