Home / 7,161,861.72-9,883,341.18-3,898,857.72

Finding the Fourth Proportional to 7,161,861.72, 9,883,341.18 and 3,898,857.72

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Solution

The fourth proportional to 7,161,861.72, 9,883,341.18 and 3,898,857.72 is: 5,380,408.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,161,861.72 : 9,883,341.18 = 3,898,857.72 : x
  2. Step 2: Convert to fraction form
    7,161,861.72/9,883,341.18 = 3,898,857.72/x
  3. Step 3: Cross multiply
    7,161,861.72x = 9,883,341.18 × 3,898,857.72
  4. Step 4: Simplify right side
    7,161,861.72x = 38,533,741,059,036.91
  5. Step 5: Solve for x
    x = 38,533,741,059,036.91/7,161,861.72
  6. Step 6: Final answer
    x = 5,380,408.41

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.