Home / 298,947,002.90-448,420,504.35-221,462,905.10

Finding the Fourth Proportional to 298,947,002.90, 448,420,504.35 and 221,462,905.10

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Solution

The fourth proportional to 298,947,002.90, 448,420,504.35 and 221,462,905.10 is: 332,194,357.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,947,002.90 : 448,420,504.35 = 221,462,905.10 : x
  2. Step 2: Convert to fraction form
    298,947,002.90/448,420,504.35 = 221,462,905.10/x
  3. Step 3: Cross multiply
    298,947,002.90x = 448,420,504.35 × 221,462,905.10
  4. Step 4: Simplify right side
    298,947,002.90x = 99,308,507,599,758,192
  5. Step 5: Solve for x
    x = 99,308,507,599,758,192/298,947,002.90
  6. Step 6: Final answer
    x = 332,194,357.65

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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.