Home / 20,738,109.60-31,052,732.40-14,639,911.20

Finding the Fourth Proportional to 20,738,109.60, 31,052,732.40 and 14,639,911.20

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Solution

The fourth proportional to 20,738,109.60, 31,052,732.40 and 14,639,911.20 is: 21,921,440.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,738,109.60 : 31,052,732.40 = 14,639,911.20 : x
  2. Step 2: Convert to fraction form
    20,738,109.60/31,052,732.40 = 14,639,911.20/x
  3. Step 3: Cross multiply
    20,738,109.60x = 31,052,732.40 × 14,639,911.20
  4. Step 4: Simplify right side
    20,738,109.60x = 454,609,244,853,362.81
  5. Step 5: Solve for x
    x = 454,609,244,853,362.81/20,738,109.60
  6. Step 6: Final answer
    x = 21,921,440.94

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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.