Home / 20,736,105.40-31,100,010.90-9,953,385.40

Finding the Fourth Proportional to 20,736,105.40, 31,100,010.90 and 9,953,385.40

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Solution

The fourth proportional to 20,736,105.40, 31,100,010.90 and 9,953,385.40 is: 14,928,087.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,736,105.40 : 31,100,010.90 = 9,953,385.40 : x
  2. Step 2: Convert to fraction form
    20,736,105.40/31,100,010.90 = 9,953,385.40/x
  3. Step 3: Cross multiply
    20,736,105.40x = 31,100,010.90 × 9,953,385.40
  4. Step 4: Simplify right side
    20,736,105.40x = 309,550,394,431,900.88
  5. Step 5: Solve for x
    x = 309,550,394,431,900.88/20,736,105.40
  6. Step 6: Final answer
    x = 14,928,087.43

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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.