Home / 15,785,102.61-21,783,507.20-8,541,758.61

Finding the Fourth Proportional to 15,785,102.61, 21,783,507.20 and 8,541,758.61

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Solution

The fourth proportional to 15,785,102.61, 21,783,507.20 and 8,541,758.61 is: 11,787,662.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,785,102.61 : 21,783,507.20 = 8,541,758.61 : x
  2. Step 2: Convert to fraction form
    15,785,102.61/21,783,507.20 = 8,541,758.61/x
  3. Step 3: Cross multiply
    15,785,102.61x = 21,783,507.20 × 8,541,758.61
  4. Step 4: Simplify right side
    15,785,102.61x = 186,069,460,218,967.16
  5. Step 5: Solve for x
    x = 186,069,460,218,967.16/15,785,102.61
  6. Step 6: Final answer
    x = 11,787,662.38

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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.