Home / 324,513,697.52-487,256,815.27-280,928,892.51

Finding the Fourth Proportional to 324,513,697.52, 487,256,815.27 and 280,928,892.51

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Solution

The fourth proportional to 324,513,697.52, 487,256,815.27 and 280,928,892.51 is: 421,814,297.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,513,697.52 : 487,256,815.27 = 280,928,892.51 : x
  2. Step 2: Convert to fraction form
    324,513,697.52/487,256,815.27 = 280,928,892.51/x
  3. Step 3: Cross multiply
    324,513,697.52x = 487,256,815.27 × 280,928,892.51
  4. Step 4: Simplify right side
    324,513,697.52x = 136,884,517,482,101,920
  5. Step 5: Solve for x
    x = 136,884,517,482,101,920/324,513,697.52
  6. Step 6: Final answer
    x = 421,814,297.91

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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.