Home / 13,659,316.40-20,488,974.60-12,875,495.60

Finding the Fourth Proportional to 13,659,316.40, 20,488,974.60 and 12,875,495.60

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Solution

The fourth proportional to 13,659,316.40, 20,488,974.60 and 12,875,495.60 is: 19,313,243.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,659,316.40 : 20,488,974.60 = 12,875,495.60 : x
  2. Step 2: Convert to fraction form
    13,659,316.40/20,488,974.60 = 12,875,495.60/x
  3. Step 3: Cross multiply
    13,659,316.40x = 20,488,974.60 × 12,875,495.60
  4. Step 4: Simplify right side
    13,659,316.40x = 263,805,702,310,811.78
  5. Step 5: Solve for x
    x = 263,805,702,310,811.78/13,659,316.40
  6. Step 6: Final answer
    x = 19,313,243.40

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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.