Home / 20,111,657.70-30,167,486.55-7,332,579.30

Finding the Fourth Proportional to 20,111,657.70, 30,167,486.55 and 7,332,579.30

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Solution

The fourth proportional to 20,111,657.70, 30,167,486.55 and 7,332,579.30 is: 10,998,868.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,111,657.70 : 30,167,486.55 = 7,332,579.30 : x
  2. Step 2: Convert to fraction form
    20,111,657.70/30,167,486.55 = 7,332,579.30/x
  3. Step 3: Cross multiply
    20,111,657.70x = 30,167,486.55 × 7,332,579.30
  4. Step 4: Simplify right side
    20,111,657.70x = 221,205,487,409,558.41
  5. Step 5: Solve for x
    x = 221,205,487,409,558.41/20,111,657.70
  6. Step 6: Final answer
    x = 10,998,868.95

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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.