Home / 10,388,128.57-15,582,189.21-2,815,094.32

Finding the Fourth Proportional to 10,388,128.57, 15,582,189.21 and 2,815,094.32

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Solution

The fourth proportional to 10,388,128.57, 15,582,189.21 and 2,815,094.32 is: 4,222,640.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,388,128.57 : 15,582,189.21 = 2,815,094.32 : x
  2. Step 2: Convert to fraction form
    10,388,128.57/15,582,189.21 = 2,815,094.32/x
  3. Step 3: Cross multiply
    10,388,128.57x = 15,582,189.21 × 2,815,094.32
  4. Step 4: Simplify right side
    10,388,128.57x = 43,865,332,338,236.29
  5. Step 5: Solve for x
    x = 43,865,332,338,236.29/10,388,128.57
  6. Step 6: Final answer
    x = 4,222,640.49

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.