Home / 20,943,256.80-28,889,885.25-12,568,484.73

Finding the Fourth Proportional to 20,943,256.80, 28,889,885.25 and 12,568,484.73

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Solution

The fourth proportional to 20,943,256.80, 28,889,885.25 and 12,568,484.73 is: 17,337,422.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,943,256.80 : 28,889,885.25 = 12,568,484.73 : x
  2. Step 2: Convert to fraction form
    20,943,256.80/28,889,885.25 = 12,568,484.73/x
  3. Step 3: Cross multiply
    20,943,256.80x = 28,889,885.25 × 12,568,484.73
  4. Step 4: Simplify right side
    20,943,256.80x = 363,102,081,616,077.25
  5. Step 5: Solve for x
    x = 363,102,081,616,077.25/20,943,256.80
  6. Step 6: Final answer
    x = 17,337,422.02

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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.