Home / 8,077,961.70-12,122,847.45-5,686,477.20

Finding the Fourth Proportional to 8,077,961.70, 12,122,847.45 and 5,686,477.20

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Solution

The fourth proportional to 8,077,961.70, 12,122,847.45 and 5,686,477.20 is: 8,533,872.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,077,961.70 : 12,122,847.45 = 5,686,477.20 : x
  2. Step 2: Convert to fraction form
    8,077,961.70/12,122,847.45 = 5,686,477.20/x
  3. Step 3: Cross multiply
    8,077,961.70x = 12,122,847.45 × 5,686,477.20
  4. Step 4: Simplify right side
    8,077,961.70x = 68,936,295,623,503.14
  5. Step 5: Solve for x
    x = 68,936,295,623,503.14/8,077,961.70
  6. Step 6: Final answer
    x = 8,533,872.55

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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.