Home / 8,469,616.40-12,683,429.40-6,790,000.40

Finding the Fourth Proportional to 8,469,616.40, 12,683,429.40 and 6,790,000.40

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Solution

The fourth proportional to 8,469,616.40, 12,683,429.40 and 6,790,000.40 is: 10,168,168.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,469,616.40 : 12,683,429.40 = 6,790,000.40 : x
  2. Step 2: Convert to fraction form
    8,469,616.40/12,683,429.40 = 6,790,000.40/x
  3. Step 3: Cross multiply
    8,469,616.40x = 12,683,429.40 × 6,790,000.40
  4. Step 4: Simplify right side
    8,469,616.40x = 86,120,490,699,371.77
  5. Step 5: Solve for x
    x = 86,120,490,699,371.77/8,469,616.40
  6. Step 6: Final answer
    x = 10,168,168.97

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1.5x scale

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.