Home / 342,149,748.30-512,216,852.85-322,218,305.10

Finding the Fourth Proportional to 342,149,748.30, 512,216,852.85 and 322,218,305.10

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Solution

The fourth proportional to 342,149,748.30, 512,216,852.85 and 322,218,305.10 is: 482,378,394.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,149,748.30 : 512,216,852.85 = 322,218,305.10 : x
  2. Step 2: Convert to fraction form
    342,149,748.30/512,216,852.85 = 322,218,305.10/x
  3. Step 3: Cross multiply
    342,149,748.30x = 512,216,852.85 × 322,218,305.10
  4. Step 4: Simplify right side
    342,149,748.30x = 165,045,646,168,983,136
  5. Step 5: Solve for x
    x = 165,045,646,168,983,136/342,149,748.30
  6. Step 6: Final answer
    x = 482,378,394.22

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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.