Home / 18,698,865.90-28,040,004.45-8,596,286.70

Finding the Fourth Proportional to 18,698,865.90, 28,040,004.45 and 8,596,286.70

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Solution

The fourth proportional to 18,698,865.90, 28,040,004.45 and 8,596,286.70 is: 12,890,616.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,698,865.90 : 28,040,004.45 = 8,596,286.70 : x
  2. Step 2: Convert to fraction form
    18,698,865.90/28,040,004.45 = 8,596,286.70/x
  3. Step 3: Cross multiply
    18,698,865.90x = 28,040,004.45 × 8,596,286.70
  4. Step 4: Simplify right side
    18,698,865.90x = 241,039,917,321,475.78
  5. Step 5: Solve for x
    x = 241,039,917,321,475.78/18,698,865.90
  6. Step 6: Final answer
    x = 12,890,616.93

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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.