Home / 279,826,139.03-386,157,914.19-154,383,621.71

Finding the Fourth Proportional to 279,826,139.03, 386,157,914.19 and 154,383,621.71

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Solution

The fourth proportional to 279,826,139.03, 386,157,914.19 and 154,383,621.71 is: 213,048,207.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,826,139.03 : 386,157,914.19 = 154,383,621.71 : x
  2. Step 2: Convert to fraction form
    279,826,139.03/386,157,914.19 = 154,383,621.71/x
  3. Step 3: Cross multiply
    279,826,139.03x = 386,157,914.19 × 154,383,621.71
  4. Step 4: Simplify right side
    279,826,139.03x = 59,616,457,342,700,816
  5. Step 5: Solve for x
    x = 59,616,457,342,700,816/279,826,139.03
  6. Step 6: Final answer
    x = 213,048,207.54

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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.