Home / 13,431,336.90-20,147,005.35-11,352,812.10

Finding the Fourth Proportional to 13,431,336.90, 20,147,005.35 and 11,352,812.10

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Solution

The fourth proportional to 13,431,336.90, 20,147,005.35 and 11,352,812.10 is: 17,029,218.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,431,336.90 : 20,147,005.35 = 11,352,812.10 : x
  2. Step 2: Convert to fraction form
    13,431,336.90/20,147,005.35 = 11,352,812.10/x
  3. Step 3: Cross multiply
    13,431,336.90x = 20,147,005.35 × 11,352,812.10
  4. Step 4: Simplify right side
    13,431,336.90x = 228,725,166,116,244.75
  5. Step 5: Solve for x
    x = 228,725,166,116,244.75/13,431,336.90
  6. Step 6: Final answer
    x = 17,029,218.15

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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.