Home / 20,763,055.14-28,444,909.62-19,986,778.50

Finding the Fourth Proportional to 20,763,055.14, 28,444,909.62 and 19,986,778.50

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Solution

The fourth proportional to 20,763,055.14, 28,444,909.62 and 19,986,778.50 is: 27,381,428.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,763,055.14 : 28,444,909.62 = 19,986,778.50 : x
  2. Step 2: Convert to fraction form
    20,763,055.14/28,444,909.62 = 19,986,778.50/x
  3. Step 3: Cross multiply
    20,763,055.14x = 28,444,909.62 × 19,986,778.50
  4. Step 4: Simplify right side
    20,763,055.14x = 568,522,108,027,459.25
  5. Step 5: Solve for x
    x = 568,522,108,027,459.25/20,763,055.14
  6. Step 6: Final answer
    x = 27,381,428.42

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.