Home / 8,210,697.60-12,282,868.80-7,101,091.20

Finding the Fourth Proportional to 8,210,697.60, 12,282,868.80 and 7,101,091.20

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Solution

The fourth proportional to 8,210,697.60, 12,282,868.80 and 7,101,091.20 is: 10,622,942.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,210,697.60 : 12,282,868.80 = 7,101,091.20 : x
  2. Step 2: Convert to fraction form
    8,210,697.60/12,282,868.80 = 7,101,091.20/x
  3. Step 3: Cross multiply
    8,210,697.60x = 12,282,868.80 × 7,101,091.20
  4. Step 4: Simplify right side
    8,210,697.60x = 87,221,771,546,434.56
  5. Step 5: Solve for x
    x = 87,221,771,546,434.56/8,210,697.60
  6. Step 6: Final answer
    x = 10,622,942.87

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.