Home / 377,061,872.67-520,337,224.40-218,298,689.87

Finding the Fourth Proportional to 377,061,872.67, 520,337,224.40 and 218,298,689.87

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Solution

The fourth proportional to 377,061,872.67, 520,337,224.40 and 218,298,689.87 is: 301,247,467.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,061,872.67 : 520,337,224.40 = 218,298,689.87 : x
  2. Step 2: Convert to fraction form
    377,061,872.67/520,337,224.40 = 218,298,689.87/x
  3. Step 3: Cross multiply
    377,061,872.67x = 520,337,224.40 × 218,298,689.87
  4. Step 4: Simplify right side
    377,061,872.67x = 113,588,934,373,419,024
  5. Step 5: Solve for x
    x = 113,588,934,373,419,024/377,061,872.67
  6. Step 6: Final answer
    x = 301,247,467.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.