Home / 20,744,712.70-31,117,069.05-11,178,774.70

Finding the Fourth Proportional to 20,744,712.70, 31,117,069.05 and 11,178,774.70

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Solution

The fourth proportional to 20,744,712.70, 31,117,069.05 and 11,178,774.70 is: 16,768,162.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,744,712.70 : 31,117,069.05 = 11,178,774.70 : x
  2. Step 2: Convert to fraction form
    20,744,712.70/31,117,069.05 = 11,178,774.70/x
  3. Step 3: Cross multiply
    20,744,712.70x = 31,117,069.05 × 11,178,774.70
  4. Step 4: Simplify right side
    20,744,712.70x = 347,850,704,234,293
  5. Step 5: Solve for x
    x = 347,850,704,234,293/20,744,712.70
  6. Step 6: Final answer
    x = 16,768,162.05

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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.