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Finding the Fourth Proportional to 299,563,669.80, 449,345,504.70 and 265,523,452.20

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Solution

The fourth proportional to 299,563,669.80, 449,345,504.70 and 265,523,452.20 is: 398,285,178.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,563,669.80 : 449,345,504.70 = 265,523,452.20 : x
  2. Step 2: Convert to fraction form
    299,563,669.80/449,345,504.70 = 265,523,452.20/x
  3. Step 3: Cross multiply
    299,563,669.80x = 449,345,504.70 × 265,523,452.20
  4. Step 4: Simplify right side
    299,563,669.80x = 119,311,769,638,495,312
  5. Step 5: Solve for x
    x = 119,311,769,638,495,312/299,563,669.80
  6. Step 6: Final answer
    x = 398,285,178.30

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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.