Home / 472,398,512.55-708,597,768.83-278,209,971.15

Finding the Fourth Proportional to 472,398,512.55, 708,597,768.83 and 278,209,971.15

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Solution

The fourth proportional to 472,398,512.55, 708,597,768.83 and 278,209,971.15 is: 417,314,956.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,398,512.55 : 708,597,768.83 = 278,209,971.15 : x
  2. Step 2: Convert to fraction form
    472,398,512.55/708,597,768.83 = 278,209,971.15/x
  3. Step 3: Cross multiply
    472,398,512.55x = 708,597,768.83 × 278,209,971.15
  4. Step 4: Simplify right side
    472,398,512.55x = 197,138,964,821,757,600
  5. Step 5: Solve for x
    x = 197,138,964,821,757,600/472,398,512.55
  6. Step 6: Final answer
    x = 417,314,956.73

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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.