Home / 812,378,162.50-1,121,081,864.25-464,697,650.50

Finding the Fourth Proportional to 812,378,162.50, 1,121,081,864.25 and 464,697,650.50

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Solution

The fourth proportional to 812,378,162.50, 1,121,081,864.25 and 464,697,650.50 is: 641,282,757.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,378,162.50 : 1,121,081,864.25 = 464,697,650.50 : x
  2. Step 2: Convert to fraction form
    812,378,162.50/1,121,081,864.25 = 464,697,650.50/x
  3. Step 3: Cross multiply
    812,378,162.50x = 1,121,081,864.25 × 464,697,650.50
  4. Step 4: Simplify right side
    812,378,162.50x = 520,964,108,335,134,976
  5. Step 5: Solve for x
    x = 520,964,108,335,134,976/812,378,162.50
  6. Step 6: Final answer
    x = 641,282,757.69

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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.