Home / 13,458,999.20-20,160,505.20-11,219,511.20

Finding the Fourth Proportional to 13,458,999.20, 20,160,505.20 and 11,219,511.20

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Solution

The fourth proportional to 13,458,999.20, 20,160,505.20 and 11,219,511.20 is: 16,805,931.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,458,999.20 : 20,160,505.20 = 11,219,511.20 : x
  2. Step 2: Convert to fraction form
    13,458,999.20/20,160,505.20 = 11,219,511.20/x
  3. Step 3: Cross multiply
    13,458,999.20x = 20,160,505.20 × 11,219,511.20
  4. Step 4: Simplify right side
    13,458,999.20x = 226,191,013,889,058.22
  5. Step 5: Solve for x
    x = 226,191,013,889,058.22/13,458,999.20
  6. Step 6: Final answer
    x = 16,805,931.15

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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.