Home / 28,405,855.20-39,200,850-17,392,395.36

Finding the Fourth Proportional to 28,405,855.20, 39,200,850 and 17,392,395.36

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Solution

The fourth proportional to 28,405,855.20, 39,200,850 and 17,392,395.36 is: 24,001,976.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,405,855.20 : 39,200,850 = 17,392,395.36 : x
  2. Step 2: Convert to fraction form
    28,405,855.20/39,200,850 = 17,392,395.36/x
  3. Step 3: Cross multiply
    28,405,855.20x = 39,200,850 × 17,392,395.36
  4. Step 4: Simplify right side
    28,405,855.20x = 681,796,681,648,056
  5. Step 5: Solve for x
    x = 681,796,681,648,056/28,405,855.20
  6. Step 6: Final answer
    x = 24,001,976.95

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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.