Home / 151,768,908.70-209,441,144.55-82,154,074.30

Finding the Fourth Proportional to 151,768,908.70, 209,441,144.55 and 82,154,074.30

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Solution

The fourth proportional to 151,768,908.70, 209,441,144.55 and 82,154,074.30 is: 113,372,649.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,768,908.70 : 209,441,144.55 = 82,154,074.30 : x
  2. Step 2: Convert to fraction form
    151,768,908.70/209,441,144.55 = 82,154,074.30/x
  3. Step 3: Cross multiply
    151,768,908.70x = 209,441,144.55 × 82,154,074.30
  4. Step 4: Simplify right side
    151,768,908.70x = 17,206,443,350,837,740
  5. Step 5: Solve for x
    x = 17,206,443,350,837,740/151,768,908.70
  6. Step 6: Final answer
    x = 113,372,649.89

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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.