Home / 376,899,622.56-520,114,020.53-209,632,285.71

Finding the Fourth Proportional to 376,899,622.56, 520,114,020.53 and 209,632,285.71

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Solution

The fourth proportional to 376,899,622.56, 520,114,020.53 and 209,632,285.71 is: 289,288,405.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,899,622.56 : 520,114,020.53 = 209,632,285.71 : x
  2. Step 2: Convert to fraction form
    376,899,622.56/520,114,020.53 = 209,632,285.71/x
  3. Step 3: Cross multiply
    376,899,622.56x = 520,114,020.53 × 209,632,285.71
  4. Step 4: Simplify right side
    376,899,622.56x = 109,032,690,951,445,296
  5. Step 5: Solve for x
    x = 109,032,690,951,445,296/376,899,622.56
  6. Step 6: Final answer
    x = 289,288,405.79

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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.