Home / 21,193,131.12-31,747,132.52-9,662,737.46

Finding the Fourth Proportional to 21,193,131.12, 31,747,132.52 and 9,662,737.46

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Solution

The fourth proportional to 21,193,131.12, 31,747,132.52 and 9,662,737.46 is: 14,474,699.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,193,131.12 : 31,747,132.52 = 9,662,737.46 : x
  2. Step 2: Convert to fraction form
    21,193,131.12/31,747,132.52 = 9,662,737.46/x
  3. Step 3: Cross multiply
    21,193,131.12x = 31,747,132.52 × 9,662,737.46
  4. Step 4: Simplify right side
    21,193,131.12x = 306,764,206,621,415.81
  5. Step 5: Solve for x
    x = 306,764,206,621,415.81/21,193,131.12
  6. Step 6: Final answer
    x = 14,474,699.60

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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.