Home / 9,166,311.88-12,646,381.92-5,680,378.76

Finding the Fourth Proportional to 9,166,311.88, 12,646,381.92 and 5,680,378.76

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Solution

The fourth proportional to 9,166,311.88, 12,646,381.92 and 5,680,378.76 is: 7,836,983.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,166,311.88 : 12,646,381.92 = 5,680,378.76 : x
  2. Step 2: Convert to fraction form
    9,166,311.88/12,646,381.92 = 5,680,378.76/x
  3. Step 3: Cross multiply
    9,166,311.88x = 12,646,381.92 × 5,680,378.76
  4. Step 4: Simplify right side
    9,166,311.88x = 71,836,239,249,216.02
  5. Step 5: Solve for x
    x = 71,836,239,249,216.02/9,166,311.88
  6. Step 6: Final answer
    x = 7,836,983.97

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Double scale
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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.