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Finding the Fourth Proportional to 644,945,352.40, 967,258,582.38 and 276,438,514

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Solution

The fourth proportional to 644,945,352.40, 967,258,582.38 and 276,438,514 is: 414,589,428.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,945,352.40 : 967,258,582.38 = 276,438,514 : x
  2. Step 2: Convert to fraction form
    644,945,352.40/967,258,582.38 = 276,438,514/x
  3. Step 3: Cross multiply
    644,945,352.40x = 967,258,582.38 × 276,438,514
  4. Step 4: Simplify right side
    644,945,352.40x = 267,387,525,166,873,792
  5. Step 5: Solve for x
    x = 267,387,525,166,873,792/644,945,352.40
  6. Step 6: Final answer
    x = 414,589,428.66

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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.