Home / 8,079,981.40-11,147,460.64-6,219,965.77

Finding the Fourth Proportional to 8,079,981.40, 11,147,460.64 and 6,219,965.77

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Solution

The fourth proportional to 8,079,981.40, 11,147,460.64 and 6,219,965.77 is: 8,581,309.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,079,981.40 : 11,147,460.64 = 6,219,965.77 : x
  2. Step 2: Convert to fraction form
    8,079,981.40/11,147,460.64 = 6,219,965.77/x
  3. Step 3: Cross multiply
    8,079,981.40x = 11,147,460.64 × 6,219,965.77
  4. Step 4: Simplify right side
    8,079,981.40x = 69,336,823,603,222.29
  5. Step 5: Solve for x
    x = 69,336,823,603,222.29/8,079,981.40
  6. Step 6: Final answer
    x = 8,581,309.80

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1.5x scale

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.