Home / 413,646,175.92-620,463,949.20-137,424,401.76

Finding the Fourth Proportional to 413,646,175.92, 620,463,949.20 and 137,424,401.76

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Solution

The fourth proportional to 413,646,175.92, 620,463,949.20 and 137,424,401.76 is: 206,134,836.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    413,646,175.92 : 620,463,949.20 = 137,424,401.76 : x
  2. Step 2: Convert to fraction form
    413,646,175.92/620,463,949.20 = 137,424,401.76/x
  3. Step 3: Cross multiply
    413,646,175.92x = 620,463,949.20 × 137,424,401.76
  4. Step 4: Simplify right side
    413,646,175.92x = 85,266,887,032,457,024
  5. Step 5: Solve for x
    x = 85,266,887,032,457,024/413,646,175.92
  6. Step 6: Final answer
    x = 206,134,836.96

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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.