Home / 279,986,916.83-420,000,553.53-107,463,730.34

Finding the Fourth Proportional to 279,986,916.83, 420,000,553.53 and 107,463,730.34

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Solution

The fourth proportional to 279,986,916.83, 420,000,553.53 and 107,463,730.34 is: 161,203,340.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,986,916.83 : 420,000,553.53 = 107,463,730.34 : x
  2. Step 2: Convert to fraction form
    279,986,916.83/420,000,553.53 = 107,463,730.34/x
  3. Step 3: Cross multiply
    279,986,916.83x = 420,000,553.53 × 107,463,730.34
  4. Step 4: Simplify right side
    279,986,916.83x = 45,134,826,227,198,656
  5. Step 5: Solve for x
    x = 45,134,826,227,198,656/279,986,916.83
  6. Step 6: Final answer
    x = 161,203,340.28

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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.