Home / 8,688,469.80-13,032,704.70-5,287,247.40

Finding the Fourth Proportional to 8,688,469.80, 13,032,704.70 and 5,287,247.40

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Solution

The fourth proportional to 8,688,469.80, 13,032,704.70 and 5,287,247.40 is: 7,930,871.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,688,469.80 : 13,032,704.70 = 5,287,247.40 : x
  2. Step 2: Convert to fraction form
    8,688,469.80/13,032,704.70 = 5,287,247.40/x
  3. Step 3: Cross multiply
    8,688,469.80x = 13,032,704.70 × 5,287,247.40
  4. Step 4: Simplify right side
    8,688,469.80x = 68,907,134,040,042.78
  5. Step 5: Solve for x
    x = 68,907,134,040,042.78/8,688,469.80
  6. Step 6: Final answer
    x = 7,930,871.10

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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.