Home / 28,274,295.96-39,020,198.94-21,292,655.90

Finding the Fourth Proportional to 28,274,295.96, 39,020,198.94 and 21,292,655.90

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Solution

The fourth proportional to 28,274,295.96, 39,020,198.94 and 21,292,655.90 is: 29,385,123.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,274,295.96 : 39,020,198.94 = 21,292,655.90 : x
  2. Step 2: Convert to fraction form
    28,274,295.96/39,020,198.94 = 21,292,655.90/x
  3. Step 3: Cross multiply
    28,274,295.96x = 39,020,198.94 × 21,292,655.90
  4. Step 4: Simplify right side
    28,274,295.96x = 830,843,668,983,863.62
  5. Step 5: Solve for x
    x = 830,843,668,983,863.62/28,274,295.96
  6. Step 6: Final answer
    x = 29,385,123.16

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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.