Home / 20,407,384.08-28,162,218.78-11,114,990.64

Finding the Fourth Proportional to 20,407,384.08, 28,162,218.78 and 11,114,990.64

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Solution

The fourth proportional to 20,407,384.08, 28,162,218.78 and 11,114,990.64 is: 15,338,702.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,407,384.08 : 28,162,218.78 = 11,114,990.64 : x
  2. Step 2: Convert to fraction form
    20,407,384.08/28,162,218.78 = 11,114,990.64/x
  3. Step 3: Cross multiply
    20,407,384.08x = 28,162,218.78 × 11,114,990.64
  4. Step 4: Simplify right side
    20,407,384.08x = 313,022,798,141,332.25
  5. Step 5: Solve for x
    x = 313,022,798,141,332.25/20,407,384.08
  6. Step 6: Final answer
    x = 15,338,702.74

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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.