Home / 15,660,841.75-21,614,560.86-9,134,471.21

Finding the Fourth Proportional to 15,660,841.75, 21,614,560.86 and 9,134,471.21

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Solution

The fourth proportional to 15,660,841.75, 21,614,560.86 and 9,134,471.21 is: 12,607,086.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,660,841.75 : 21,614,560.86 = 9,134,471.21 : x
  2. Step 2: Convert to fraction form
    15,660,841.75/21,614,560.86 = 9,134,471.21/x
  3. Step 3: Cross multiply
    15,660,841.75x = 21,614,560.86 × 9,134,471.21
  4. Step 4: Simplify right side
    15,660,841.75x = 197,437,583,869,626.69
  5. Step 5: Solve for x
    x = 197,437,583,869,626.69/15,660,841.75
  6. Step 6: Final answer
    x = 12,607,086.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.