Home / 218,311,057.62-301,405,222.53-138,970,885.77

Finding the Fourth Proportional to 218,311,057.62, 301,405,222.53 and 138,970,885.77

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Solution

The fourth proportional to 218,311,057.62, 301,405,222.53 and 138,970,885.77 is: 191,866,372.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,311,057.62 : 301,405,222.53 = 138,970,885.77 : x
  2. Step 2: Convert to fraction form
    218,311,057.62/301,405,222.53 = 138,970,885.77/x
  3. Step 3: Cross multiply
    218,311,057.62x = 301,405,222.53 × 138,970,885.77
  4. Step 4: Simplify right side
    218,311,057.62x = 41,886,550,750,698,056
  5. Step 5: Solve for x
    x = 41,886,550,750,698,056/218,311,057.62
  6. Step 6: Final answer
    x = 191,866,372.72

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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.