Home / 343,872,408.20-515,808,612.30-299,082,648.20

Finding the Fourth Proportional to 343,872,408.20, 515,808,612.30 and 299,082,648.20

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Solution

The fourth proportional to 343,872,408.20, 515,808,612.30 and 299,082,648.20 is: 448,623,972.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,872,408.20 : 515,808,612.30 = 299,082,648.20 : x
  2. Step 2: Convert to fraction form
    343,872,408.20/515,808,612.30 = 299,082,648.20/x
  3. Step 3: Cross multiply
    343,872,408.20x = 515,808,612.30 × 299,082,648.20
  4. Step 4: Simplify right side
    343,872,408.20x = 154,269,405,731,051,104
  5. Step 5: Solve for x
    x = 154,269,405,731,051,104/343,872,408.20
  6. Step 6: Final answer
    x = 448,623,972.30

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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.