Home / 448,518,428.70-672,777,643.05-275,433,999.90

Finding the Fourth Proportional to 448,518,428.70, 672,777,643.05 and 275,433,999.90

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Solution

The fourth proportional to 448,518,428.70, 672,777,643.05 and 275,433,999.90 is: 413,150,999.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,518,428.70 : 672,777,643.05 = 275,433,999.90 : x
  2. Step 2: Convert to fraction form
    448,518,428.70/672,777,643.05 = 275,433,999.90/x
  3. Step 3: Cross multiply
    448,518,428.70x = 672,777,643.05 × 275,433,999.90
  4. Step 4: Simplify right side
    448,518,428.70x = 185,305,837,268,555,904
  5. Step 5: Solve for x
    x = 185,305,837,268,555,904/448,518,428.70
  6. Step 6: Final answer
    x = 413,150,999.85

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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.