Home / 20,111,021.70-30,166,532.55-7,331,943.30

Finding the Fourth Proportional to 20,111,021.70, 30,166,532.55 and 7,331,943.30

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Solution

The fourth proportional to 20,111,021.70, 30,166,532.55 and 7,331,943.30 is: 10,997,914.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,111,021.70 : 30,166,532.55 = 7,331,943.30 : x
  2. Step 2: Convert to fraction form
    20,111,021.70/30,166,532.55 = 7,331,943.30/x
  3. Step 3: Cross multiply
    20,111,021.70x = 30,166,532.55 × 7,331,943.30
  4. Step 4: Simplify right side
    20,111,021.70x = 221,179,306,214,204.41
  5. Step 5: Solve for x
    x = 221,179,306,214,204.41/20,111,021.70
  6. Step 6: Final answer
    x = 10,997,914.95

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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.