Home / 9,521,650.79-13,143,900.07-6,428,363.77

Finding the Fourth Proportional to 9,521,650.79, 13,143,900.07 and 6,428,363.77

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Solution

The fourth proportional to 9,521,650.79, 13,143,900.07 and 6,428,363.77 is: 8,873,857.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,521,650.79 : 13,143,900.07 = 6,428,363.77 : x
  2. Step 2: Convert to fraction form
    9,521,650.79/13,143,900.07 = 6,428,363.77/x
  3. Step 3: Cross multiply
    9,521,650.79x = 13,143,900.07 × 6,428,363.77
  4. Step 4: Simplify right side
    9,521,650.79x = 84,493,770,957,019.34
  5. Step 5: Solve for x
    x = 84,493,770,957,019.34/9,521,650.79
  6. Step 6: Final answer
    x = 8,873,857.36

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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.