Home / 28,866,755.70-39,834,448.92-15,811,741.89

Finding the Fourth Proportional to 28,866,755.70, 39,834,448.92 and 15,811,741.89

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Solution

The fourth proportional to 28,866,755.70, 39,834,448.92 and 15,811,741.89 is: 21,819,286.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,866,755.70 : 39,834,448.92 = 15,811,741.89 : x
  2. Step 2: Convert to fraction form
    28,866,755.70/39,834,448.92 = 15,811,741.89/x
  3. Step 3: Cross multiply
    28,866,755.70x = 39,834,448.92 × 15,811,741.89
  4. Step 4: Simplify right side
    28,866,755.70x = 629,852,024,653,429.25
  5. Step 5: Solve for x
    x = 629,852,024,653,429.25/28,866,755.70
  6. Step 6: Final answer
    x = 21,819,286.91

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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.