Home / 911,081,401.52-1,257,285,762.48-493,383,997.04

Finding the Fourth Proportional to 911,081,401.52, 1,257,285,762.48 and 493,383,997.04

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Solution

The fourth proportional to 911,081,401.52, 1,257,285,762.48 and 493,383,997.04 is: 680,866,357.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,081,401.52 : 1,257,285,762.48 = 493,383,997.04 : x
  2. Step 2: Convert to fraction form
    911,081,401.52/1,257,285,762.48 = 493,383,997.04/x
  3. Step 3: Cross multiply
    911,081,401.52x = 1,257,285,762.48 × 493,383,997.04
  4. Step 4: Simplify right side
    911,081,401.52x = 620,324,674,913,866,496
  5. Step 5: Solve for x
    x = 620,324,674,913,866,496/911,081,401.52
  6. Step 6: Final answer
    x = 680,866,357.14

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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.