Home / 5,472,142.70-8,208,214.05-1,686,785.90

Finding the Fourth Proportional to 5,472,142.70, 8,208,214.05 and 1,686,785.90

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Solution

The fourth proportional to 5,472,142.70, 8,208,214.05 and 1,686,785.90 is: 2,530,178.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,472,142.70 : 8,208,214.05 = 1,686,785.90 : x
  2. Step 2: Convert to fraction form
    5,472,142.70/8,208,214.05 = 1,686,785.90/x
  3. Step 3: Cross multiply
    5,472,142.70x = 8,208,214.05 × 1,686,785.90
  4. Step 4: Simplify right side
    5,472,142.70x = 13,845,499,723,721.89
  5. Step 5: Solve for x
    x = 13,845,499,723,721.89/5,472,142.70
  6. Step 6: Final answer
    x = 2,530,178.85

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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.