Home / 38,832,165.20-53,588,033.16-21,428,670.80

Finding the Fourth Proportional to 38,832,165.20, 53,588,033.16 and 21,428,670.80

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Solution

The fourth proportional to 38,832,165.20, 53,588,033.16 and 21,428,670.80 is: 29,571,369.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,832,165.20 : 53,588,033.16 = 21,428,670.80 : x
  2. Step 2: Convert to fraction form
    38,832,165.20/53,588,033.16 = 21,428,670.80/x
  3. Step 3: Cross multiply
    38,832,165.20x = 53,588,033.16 × 21,428,670.80
  4. Step 4: Simplify right side
    38,832,165.20x = 1,148,320,321,405,123.75
  5. Step 5: Solve for x
    x = 1,148,320,321,405,123.75/38,832,165.20
  6. Step 6: Final answer
    x = 29,571,369.91

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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.