Home / 261,179,765.72-391,339,178.49-151,697,605.31

Finding the Fourth Proportional to 261,179,765.72, 391,339,178.49 and 151,697,605.31

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Solution

The fourth proportional to 261,179,765.72, 391,339,178.49 and 151,697,605.31 is: 227,296,383.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,179,765.72 : 391,339,178.49 = 151,697,605.31 : x
  2. Step 2: Convert to fraction form
    261,179,765.72/391,339,178.49 = 151,697,605.31/x
  3. Step 3: Cross multiply
    261,179,765.72x = 391,339,178.49 × 151,697,605.31
  4. Step 4: Simplify right side
    261,179,765.72x = 59,365,216,240,915,664
  5. Step 5: Solve for x
    x = 59,365,216,240,915,664/261,179,765.72
  6. Step 6: Final answer
    x = 227,296,383.69

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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.