Home / 10,785,979.60-16,178,969.40-7,774,480.60

Finding the Fourth Proportional to 10,785,979.60, 16,178,969.40 and 7,774,480.60

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Solution

The fourth proportional to 10,785,979.60, 16,178,969.40 and 7,774,480.60 is: 11,661,720.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,785,979.60 : 16,178,969.40 = 7,774,480.60 : x
  2. Step 2: Convert to fraction form
    10,785,979.60/16,178,969.40 = 7,774,480.60/x
  3. Step 3: Cross multiply
    10,785,979.60x = 16,178,969.40 × 7,774,480.60
  4. Step 4: Simplify right side
    10,785,979.60x = 125,783,083,728,293.64
  5. Step 5: Solve for x
    x = 125,783,083,728,293.64/10,785,979.60
  6. Step 6: Final answer
    x = 11,661,720.90

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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.