Home / 20,990,164.11-28,965,150.90-11,570,541.27

Finding the Fourth Proportional to 20,990,164.11, 28,965,150.90 and 11,570,541.27

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Solution

The fourth proportional to 20,990,164.11, 28,965,150.90 and 11,570,541.27 is: 15,966,643.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,990,164.11 : 28,965,150.90 = 11,570,541.27 : x
  2. Step 2: Convert to fraction form
    20,990,164.11/28,965,150.90 = 11,570,541.27/x
  3. Step 3: Cross multiply
    20,990,164.11x = 28,965,150.90 × 11,570,541.27
  4. Step 4: Simplify right side
    20,990,164.11x = 335,142,473,880,227.62
  5. Step 5: Solve for x
    x = 335,142,473,880,227.62/20,990,164.11
  6. Step 6: Final answer
    x = 15,966,643.81

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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.