Home / 12,298,914.40-18,448,371.60-7,830,997.60

Finding the Fourth Proportional to 12,298,914.40, 18,448,371.60 and 7,830,997.60

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Solution

The fourth proportional to 12,298,914.40, 18,448,371.60 and 7,830,997.60 is: 11,746,496.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,298,914.40 : 18,448,371.60 = 7,830,997.60 : x
  2. Step 2: Convert to fraction form
    12,298,914.40/18,448,371.60 = 7,830,997.60/x
  3. Step 3: Cross multiply
    12,298,914.40x = 18,448,371.60 × 7,830,997.60
  4. Step 4: Simplify right side
    12,298,914.40x = 144,469,153,723,508.16
  5. Step 5: Solve for x
    x = 144,469,153,723,508.16/12,298,914.40
  6. Step 6: Final answer
    x = 11,746,496.40

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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.