Home / 9,789,143.40-14,683,715.10-8,340,474.60

Finding the Fourth Proportional to 9,789,143.40, 14,683,715.10 and 8,340,474.60

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Solution

The fourth proportional to 9,789,143.40, 14,683,715.10 and 8,340,474.60 is: 12,510,711.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,789,143.40 : 14,683,715.10 = 8,340,474.60 : x
  2. Step 2: Convert to fraction form
    9,789,143.40/14,683,715.10 = 8,340,474.60/x
  3. Step 3: Cross multiply
    9,789,143.40x = 14,683,715.10 × 8,340,474.60
  4. Step 4: Simplify right side
    9,789,143.40x = 122,469,152,825,186.45
  5. Step 5: Solve for x
    x = 122,469,152,825,186.45/9,789,143.40
  6. Step 6: Final answer
    x = 12,510,711.90

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Double scale
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Similar ratio
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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.