Home / 100,239,136.18-138,327,538.88-55,584,861.51

Finding the Fourth Proportional to 100,239,136.18, 138,327,538.88 and 55,584,861.51

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Solution

The fourth proportional to 100,239,136.18, 138,327,538.88 and 55,584,861.51 is: 76,705,739.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,239,136.18 : 138,327,538.88 = 55,584,861.51 : x
  2. Step 2: Convert to fraction form
    100,239,136.18/138,327,538.88 = 55,584,861.51/x
  3. Step 3: Cross multiply
    100,239,136.18x = 138,327,538.88 × 55,584,861.51
  4. Step 4: Simplify right side
    100,239,136.18x = 7,688,917,090,694,379
  5. Step 5: Solve for x
    x = 7,688,917,090,694,379/100,239,136.18
  6. Step 6: Final answer
    x = 76,705,739.73

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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.