Home / 12,903,882.40-19,355,823.60-8,368,919.20

Finding the Fourth Proportional to 12,903,882.40, 19,355,823.60 and 8,368,919.20

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Solution

The fourth proportional to 12,903,882.40, 19,355,823.60 and 8,368,919.20 is: 12,553,378.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,903,882.40 : 19,355,823.60 = 8,368,919.20 : x
  2. Step 2: Convert to fraction form
    12,903,882.40/19,355,823.60 = 8,368,919.20/x
  3. Step 3: Cross multiply
    12,903,882.40x = 19,355,823.60 × 8,368,919.20
  4. Step 4: Simplify right side
    12,903,882.40x = 161,987,323,757,853.12
  5. Step 5: Solve for x
    x = 161,987,323,757,853.12/12,903,882.40
  6. Step 6: Final answer
    x = 12,553,378.80

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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.