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Finding the Fourth Proportional to 299,273,507.80, 448,910,261.70 and 282,645,309.40

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Solution

The fourth proportional to 299,273,507.80, 448,910,261.70 and 282,645,309.40 is: 423,967,964.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,273,507.80 : 448,910,261.70 = 282,645,309.40 : x
  2. Step 2: Convert to fraction form
    299,273,507.80/448,910,261.70 = 282,645,309.40/x
  3. Step 3: Cross multiply
    299,273,507.80x = 448,910,261.70 × 282,645,309.40
  4. Step 4: Simplify right side
    299,273,507.80x = 126,882,379,811,031,456
  5. Step 5: Solve for x
    x = 126,882,379,811,031,456/299,273,507.80
  6. Step 6: Final answer
    x = 423,967,964.10

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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.