Home / 5,138,029.77-7,090,480.02-2,815,004.70

Finding the Fourth Proportional to 5,138,029.77, 7,090,480.02 and 2,815,004.70

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Solution

The fourth proportional to 5,138,029.77, 7,090,480.02 and 2,815,004.70 is: 3,884,705.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,138,029.77 : 7,090,480.02 = 2,815,004.70 : x
  2. Step 2: Convert to fraction form
    5,138,029.77/7,090,480.02 = 2,815,004.70/x
  3. Step 3: Cross multiply
    5,138,029.77x = 7,090,480.02 × 2,815,004.70
  4. Step 4: Simplify right side
    5,138,029.77x = 19,959,734,581,556.09
  5. Step 5: Solve for x
    x = 19,959,734,581,556.09/5,138,029.77
  6. Step 6: Final answer
    x = 3,884,705.90

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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.