Home / 503,002,655.12-694,143,557.16-279,979,527.44

Finding the Fourth Proportional to 503,002,655.12, 694,143,557.16 and 279,979,527.44

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Solution

The fourth proportional to 503,002,655.12, 694,143,557.16 and 279,979,527.44 is: 386,371,688.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,002,655.12 : 694,143,557.16 = 279,979,527.44 : x
  2. Step 2: Convert to fraction form
    503,002,655.12/694,143,557.16 = 279,979,527.44/x
  3. Step 3: Cross multiply
    503,002,655.12x = 694,143,557.16 × 279,979,527.44
  4. Step 4: Simplify right side
    503,002,655.12x = 194,345,985,109,177,408
  5. Step 5: Solve for x
    x = 194,345,985,109,177,408/503,002,655.12
  6. Step 6: Final answer
    x = 386,371,688.36

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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.