Home / 8,209,318.99-12,315,985.26-5,785,200.67

Finding the Fourth Proportional to 8,209,318.99, 12,315,985.26 and 5,785,200.67

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Solution

The fourth proportional to 8,209,318.99, 12,315,985.26 and 5,785,200.67 is: 8,679,215.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,209,318.99 : 12,315,985.26 = 5,785,200.67 : x
  2. Step 2: Convert to fraction form
    8,209,318.99/12,315,985.26 = 5,785,200.67/x
  3. Step 3: Cross multiply
    8,209,318.99x = 12,315,985.26 × 5,785,200.67
  4. Step 4: Simplify right side
    8,209,318.99x = 71,250,446,177,862.12
  5. Step 5: Solve for x
    x = 71,250,446,177,862.12/8,209,318.99
  6. Step 6: Final answer
    x = 8,679,215.20

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Double scale
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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.