Home / 87,383,677,592.78-120,589,792,879.82-47,285,656,981.28

Finding the Fourth Proportional to 87,383,677,592.78, 120,589,792,879.82 and 47,285,656,981.28

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Solution

The fourth proportional to 87,383,677,592.78, 120,589,792,879.82 and 47,285,656,981.28 is: 65,254,378,605.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,383,677,592.78 : 120,589,792,879.82 = 47,285,656,981.28 : x
  2. Step 2: Convert to fraction form
    87,383,677,592.78/120,589,792,879.82 = 47,285,656,981.28/x
  3. Step 3: Cross multiply
    87,383,677,592.78x = 120,589,792,879.82 × 47,285,656,981.28
  4. Step 4: Simplify right side
    87,383,677,592.78x = 5,702,167,581,558,167,306,240
  5. Step 5: Solve for x
    x = 5,702,167,581,558,167,306,240/87,383,677,592.78
  6. Step 6: Final answer
    x = 65,254,378,605.25

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1.5x scale

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.