Home / 5,191,405.80-7,164,215.17-2,868,351.77

Finding the Fourth Proportional to 5,191,405.80, 7,164,215.17 and 2,868,351.77

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Solution

The fourth proportional to 5,191,405.80, 7,164,215.17 and 2,868,351.77 is: 3,958,366.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,191,405.80 : 7,164,215.17 = 2,868,351.77 : x
  2. Step 2: Convert to fraction form
    5,191,405.80/7,164,215.17 = 2,868,351.77/x
  3. Step 3: Cross multiply
    5,191,405.80x = 7,164,215.17 × 2,868,351.77
  4. Step 4: Simplify right side
    5,191,405.80x = 20,549,489,220,538.40
  5. Step 5: Solve for x
    x = 20,549,489,220,538.40/5,191,405.80
  6. Step 6: Final answer
    x = 3,958,366.96

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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.