Home / 20,407,532.76-28,162,395.55-11,240,175.51

Finding the Fourth Proportional to 20,407,532.76, 28,162,395.55 and 11,240,175.51

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Solution

The fourth proportional to 20,407,532.76, 28,162,395.55 and 11,240,175.51 is: 15,511,442.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,407,532.76 : 28,162,395.55 = 11,240,175.51 : x
  2. Step 2: Convert to fraction form
    20,407,532.76/28,162,395.55 = 11,240,175.51/x
  3. Step 3: Cross multiply
    20,407,532.76x = 28,162,395.55 × 11,240,175.51
  4. Step 4: Simplify right side
    20,407,532.76x = 316,550,268,764,043
  5. Step 5: Solve for x
    x = 316,550,268,764,043/20,407,532.76
  6. Step 6: Final answer
    x = 15,511,442.39

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Double scale
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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.