Home / 20,781,002.35-31,171,503.53-19,363,826.35

Finding the Fourth Proportional to 20,781,002.35, 31,171,503.53 and 19,363,826.35

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Solution

The fourth proportional to 20,781,002.35, 31,171,503.53 and 19,363,826.35 is: 29,045,739.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,781,002.35 : 31,171,503.53 = 19,363,826.35 : x
  2. Step 2: Convert to fraction form
    20,781,002.35/31,171,503.53 = 19,363,826.35/x
  3. Step 3: Cross multiply
    20,781,002.35x = 31,171,503.53 × 19,363,826.35
  4. Step 4: Simplify right side
    20,781,002.35x = 603,599,581,326,512.88
  5. Step 5: Solve for x
    x = 603,599,581,326,512.88/20,781,002.35
  6. Step 6: Final answer
    x = 29,045,739.53

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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.