Home / 12,588,523.20-18,888,928.80-5,853,470.40

Finding the Fourth Proportional to 12,588,523.20, 18,888,928.80 and 5,853,470.40

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Solution

The fourth proportional to 12,588,523.20, 18,888,928.80 and 5,853,470.40 is: 8,783,062.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,588,523.20 : 18,888,928.80 = 5,853,470.40 : x
  2. Step 2: Convert to fraction form
    12,588,523.20/18,888,928.80 = 5,853,470.40/x
  3. Step 3: Cross multiply
    12,588,523.20x = 18,888,928.80 × 5,853,470.40
  4. Step 4: Simplify right side
    12,588,523.20x = 110,565,785,618,507.53
  5. Step 5: Solve for x
    x = 110,565,785,618,507.53/12,588,523.20
  6. Step 6: Final answer
    x = 8,783,062.47

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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.