Home / 20,111,060.28-30,166,445.08-13,318,040.32

Finding the Fourth Proportional to 20,111,060.28, 30,166,445.08 and 13,318,040.32

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Solution

The fourth proportional to 20,111,060.28, 30,166,445.08 and 13,318,040.32 is: 19,976,964.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,111,060.28 : 30,166,445.08 = 13,318,040.32 : x
  2. Step 2: Convert to fraction form
    20,111,060.28/30,166,445.08 = 13,318,040.32/x
  3. Step 3: Cross multiply
    20,111,060.28x = 30,166,445.08 × 13,318,040.32
  4. Step 4: Simplify right side
    20,111,060.28x = 401,757,931,890,918.56
  5. Step 5: Solve for x
    x = 401,757,931,890,918.56/20,111,060.28
  6. Step 6: Final answer
    x = 19,976,964.23

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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.