Home / 20,111,786.40-30,167,679.60-18,537,146.40

Finding the Fourth Proportional to 20,111,786.40, 30,167,679.60 and 18,537,146.40

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Solution

The fourth proportional to 20,111,786.40, 30,167,679.60 and 18,537,146.40 is: 27,805,719.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,111,786.40 : 30,167,679.60 = 18,537,146.40 : x
  2. Step 2: Convert to fraction form
    20,111,786.40/30,167,679.60 = 18,537,146.40/x
  3. Step 3: Cross multiply
    20,111,786.40x = 30,167,679.60 × 18,537,146.40
  4. Step 4: Simplify right side
    20,111,786.40x = 559,222,693,293,493.44
  5. Step 5: Solve for x
    x = 559,222,693,293,493.44/20,111,786.40
  6. Step 6: Final answer
    x = 27,805,719.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.