Home / 13,173,638.40-19,755,542.40-5,193,811.20

Finding the Fourth Proportional to 13,173,638.40, 19,755,542.40 and 5,193,811.20

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Solution

The fourth proportional to 13,173,638.40, 19,755,542.40 and 5,193,811.20 is: 7,788,778.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,173,638.40 : 19,755,542.40 = 5,193,811.20 : x
  2. Step 2: Convert to fraction form
    13,173,638.40/19,755,542.40 = 5,193,811.20/x
  3. Step 3: Cross multiply
    13,173,638.40x = 19,755,542.40 × 5,193,811.20
  4. Step 4: Simplify right side
    13,173,638.40x = 102,606,557,379,194.88
  5. Step 5: Solve for x
    x = 102,606,557,379,194.88/13,173,638.40
  6. Step 6: Final answer
    x = 7,788,778.94

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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.