Home / 261,749,356.20-392,624,034.30-221,438,572.20

Finding the Fourth Proportional to 261,749,356.20, 392,624,034.30 and 221,438,572.20

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Solution

The fourth proportional to 261,749,356.20, 392,624,034.30 and 221,438,572.20 is: 332,157,858.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,749,356.20 : 392,624,034.30 = 221,438,572.20 : x
  2. Step 2: Convert to fraction form
    261,749,356.20/392,624,034.30 = 221,438,572.20/x
  3. Step 3: Cross multiply
    261,749,356.20x = 392,624,034.30 × 221,438,572.20
  4. Step 4: Simplify right side
    261,749,356.20x = 86,942,105,566,795,824
  5. Step 5: Solve for x
    x = 86,942,105,566,795,824/261,749,356.20
  6. Step 6: Final answer
    x = 332,157,858.30

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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.