Home / 20,128,537.80-27,777,699.90-10,961,173.80

Finding the Fourth Proportional to 20,128,537.80, 27,777,699.90 and 10,961,173.80

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Solution

The fourth proportional to 20,128,537.80, 27,777,699.90 and 10,961,173.80 is: 15,126,592.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,128,537.80 : 27,777,699.90 = 10,961,173.80 : x
  2. Step 2: Convert to fraction form
    20,128,537.80/27,777,699.90 = 10,961,173.80/x
  3. Step 3: Cross multiply
    20,128,537.80x = 27,777,699.90 × 10,961,173.80
  4. Step 4: Simplify right side
    20,128,537.80x = 304,476,196,368,142.62
  5. Step 5: Solve for x
    x = 304,476,196,368,142.62/20,128,537.80
  6. Step 6: Final answer
    x = 15,126,592.87

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1.5x scale

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.