Home / 12,481,149.76-18,718,015.20-5,292,577.60

Finding the Fourth Proportional to 12,481,149.76, 18,718,015.20 and 5,292,577.60

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Solution

The fourth proportional to 12,481,149.76, 18,718,015.20 and 5,292,577.60 is: 7,937,293.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,481,149.76 : 18,718,015.20 = 5,292,577.60 : x
  2. Step 2: Convert to fraction form
    12,481,149.76/18,718,015.20 = 5,292,577.60/x
  3. Step 3: Cross multiply
    12,481,149.76x = 18,718,015.20 × 5,292,577.60
  4. Step 4: Simplify right side
    12,481,149.76x = 99,066,547,963,979.52
  5. Step 5: Solve for x
    x = 99,066,547,963,979.52/12,481,149.76
  6. Step 6: Final answer
    x = 7,937,293.43

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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.