Home / 3,553,143.20-5,328,159.60-1,422,519.20

Finding the Fourth Proportional to 3,553,143.20, 5,328,159.60 and 1,422,519.20

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Solution

The fourth proportional to 3,553,143.20, 5,328,159.60 and 1,422,519.20 is: 2,133,156.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,553,143.20 : 5,328,159.60 = 1,422,519.20 : x
  2. Step 2: Convert to fraction form
    3,553,143.20/5,328,159.60 = 1,422,519.20/x
  3. Step 3: Cross multiply
    3,553,143.20x = 5,328,159.60 × 1,422,519.20
  4. Step 4: Simplify right side
    3,553,143.20x = 7,579,409,331,664.32
  5. Step 5: Solve for x
    x = 7,579,409,331,664.32/3,553,143.20
  6. Step 6: Final answer
    x = 2,133,156.17

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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.