Home / 38,481,309.01-53,103,549.94-20,840,068.72

Finding the Fourth Proportional to 38,481,309.01, 53,103,549.94 and 20,840,068.72

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Solution

The fourth proportional to 38,481,309.01, 53,103,549.94 and 20,840,068.72 is: 28,758,939.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,481,309.01 : 53,103,549.94 = 20,840,068.72 : x
  2. Step 2: Convert to fraction form
    38,481,309.01/53,103,549.94 = 20,840,068.72/x
  3. Step 3: Cross multiply
    38,481,309.01x = 53,103,549.94 × 20,840,068.72
  4. Step 4: Simplify right side
    38,481,309.01x = 1,106,681,630,025,551.75
  5. Step 5: Solve for x
    x = 1,106,681,630,025,551.75/38,481,309.01
  6. Step 6: Final answer
    x = 28,758,939.30

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Double scale
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Similar ratio
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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.