Home / 20,364,578.96-28,103,221.80-11,197,811.60

Finding the Fourth Proportional to 20,364,578.96, 28,103,221.80 and 11,197,811.60

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Solution

The fourth proportional to 20,364,578.96, 28,103,221.80 and 11,197,811.60 is: 15,453,036.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,364,578.96 : 28,103,221.80 = 11,197,811.60 : x
  2. Step 2: Convert to fraction form
    20,364,578.96/28,103,221.80 = 11,197,811.60/x
  3. Step 3: Cross multiply
    20,364,578.96x = 28,103,221.80 × 11,197,811.60
  4. Step 4: Simplify right side
    20,364,578.96x = 314,694,583,069,412.88
  5. Step 5: Solve for x
    x = 314,694,583,069,412.88/20,364,578.96
  6. Step 6: Final answer
    x = 15,453,036.55

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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.