Home / 12,383,151.10-18,574,726.65-6,643,588.30

Finding the Fourth Proportional to 12,383,151.10, 18,574,726.65 and 6,643,588.30

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Solution

The fourth proportional to 12,383,151.10, 18,574,726.65 and 6,643,588.30 is: 9,965,382.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,383,151.10 : 18,574,726.65 = 6,643,588.30 : x
  2. Step 2: Convert to fraction form
    12,383,151.10/18,574,726.65 = 6,643,588.30/x
  3. Step 3: Cross multiply
    12,383,151.10x = 18,574,726.65 × 6,643,588.30
  4. Step 4: Simplify right side
    12,383,151.10x = 123,402,836,647,638.19
  5. Step 5: Solve for x
    x = 123,402,836,647,638.19/12,383,151.10
  6. Step 6: Final answer
    x = 9,965,382.45

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.