Home / 19,428,986.80-29,143,480.20-13,755,617.20

Finding the Fourth Proportional to 19,428,986.80, 29,143,480.20 and 13,755,617.20

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Solution

The fourth proportional to 19,428,986.80, 29,143,480.20 and 13,755,617.20 is: 20,633,425.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,428,986.80 : 29,143,480.20 = 13,755,617.20 : x
  2. Step 2: Convert to fraction form
    19,428,986.80/29,143,480.20 = 13,755,617.20/x
  3. Step 3: Cross multiply
    19,428,986.80x = 29,143,480.20 × 13,755,617.20
  4. Step 4: Simplify right side
    19,428,986.80x = 400,886,557,506,979.44
  5. Step 5: Solve for x
    x = 400,886,557,506,979.44/19,428,986.80
  6. Step 6: Final answer
    x = 20,633,425.80

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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.