Home / 20,762,453.74-28,444,088.60-19,986,178.90

Finding the Fourth Proportional to 20,762,453.74, 28,444,088.60 and 19,986,178.90

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Solution

The fourth proportional to 20,762,453.74, 28,444,088.60 and 19,986,178.90 is: 27,380,609.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,762,453.74 : 28,444,088.60 = 19,986,178.90 : x
  2. Step 2: Convert to fraction form
    20,762,453.74/28,444,088.60 = 19,986,178.90/x
  3. Step 3: Cross multiply
    20,762,453.74x = 28,444,088.60 × 19,986,178.90
  4. Step 4: Simplify right side
    20,762,453.74x = 568,488,643,407,050.50
  5. Step 5: Solve for x
    x = 568,488,643,407,050.50/20,762,453.74
  6. Step 6: Final answer
    x = 27,380,609.75

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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.