Home / 684,318,445.22-944,378,023.39-387,005,147.38

Finding the Fourth Proportional to 684,318,445.22, 944,378,023.39 and 387,005,147.38

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Solution

The fourth proportional to 684,318,445.22, 944,378,023.39 and 387,005,147.38 is: 534,077,604.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,318,445.22 : 944,378,023.39 = 387,005,147.38 : x
  2. Step 2: Convert to fraction form
    684,318,445.22/944,378,023.39 = 387,005,147.38/x
  3. Step 3: Cross multiply
    684,318,445.22x = 944,378,023.39 × 387,005,147.38
  4. Step 4: Simplify right side
    684,318,445.22x = 365,479,156,119,758,144
  5. Step 5: Solve for x
    x = 365,479,156,119,758,144/684,318,445.22
  6. Step 6: Final answer
    x = 534,077,604.77

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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.