Home / 279,826,143.04-386,157,919.71-154,383,625.72

Finding the Fourth Proportional to 279,826,143.04, 386,157,919.71 and 154,383,625.72

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Solution

The fourth proportional to 279,826,143.04, 386,157,919.71 and 154,383,625.72 is: 213,048,213.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,826,143.04 : 386,157,919.71 = 154,383,625.72 : x
  2. Step 2: Convert to fraction form
    279,826,143.04/386,157,919.71 = 154,383,625.72/x
  3. Step 3: Cross multiply
    279,826,143.04x = 386,157,919.71 × 154,383,625.72
  4. Step 4: Simplify right side
    279,826,143.04x = 59,616,459,745,322,448
  5. Step 5: Solve for x
    x = 59,616,459,745,322,448/279,826,143.04
  6. Step 6: Final answer
    x = 213,048,213.07

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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.