Home / 12,578,906.10-18,868,359.15-9,555,597.30

Finding the Fourth Proportional to 12,578,906.10, 18,868,359.15 and 9,555,597.30

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Solution

The fourth proportional to 12,578,906.10, 18,868,359.15 and 9,555,597.30 is: 14,333,395.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,578,906.10 : 18,868,359.15 = 9,555,597.30 : x
  2. Step 2: Convert to fraction form
    12,578,906.10/18,868,359.15 = 9,555,597.30/x
  3. Step 3: Cross multiply
    12,578,906.10x = 18,868,359.15 × 9,555,597.30
  4. Step 4: Simplify right side
    12,578,906.10x = 180,298,441,749,170.28
  5. Step 5: Solve for x
    x = 180,298,441,749,170.28/12,578,906.10
  6. Step 6: Final answer
    x = 14,333,395.95

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Double scale
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Similar ratio
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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.