Home / 20,409,935.40-30,572,912.70-10,318,242.60

Finding the Fourth Proportional to 20,409,935.40, 30,572,912.70 and 10,318,242.60

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Solution

The fourth proportional to 20,409,935.40, 30,572,912.70 and 10,318,242.60 is: 15,456,135.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,409,935.40 : 30,572,912.70 = 10,318,242.60 : x
  2. Step 2: Convert to fraction form
    20,409,935.40/30,572,912.70 = 10,318,242.60/x
  3. Step 3: Cross multiply
    20,409,935.40x = 30,572,912.70 × 10,318,242.60
  4. Step 4: Simplify right side
    20,409,935.40x = 315,458,730,227,221
  5. Step 5: Solve for x
    x = 315,458,730,227,221/20,409,935.40
  6. Step 6: Final answer
    x = 15,456,135.65

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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.