Home / 638,249,412,815.10-880,777,659,335.67-353,109,973,644.54

Finding the Fourth Proportional to 638,249,412,815.10, 880,777,659,335.67 and 353,109,973,644.54

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Solution

The fourth proportional to 638,249,412,815.10, 880,777,659,335.67 and 353,109,973,644.54 is: 487,288,150,729.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,249,412,815.10 : 880,777,659,335.67 = 353,109,973,644.54 : x
  2. Step 2: Convert to fraction form
    638,249,412,815.10/880,777,659,335.67 = 353,109,973,644.54/x
  3. Step 3: Cross multiply
    638,249,412,815.10x = 880,777,659,335.67 × 353,109,973,644.54
  4. Step 4: Simplify right side
    638,249,412,815.10x = 311,011,376,074,718,049,206,272
  5. Step 5: Solve for x
    x = 311,011,376,074,718,049,206,272/638,249,412,815.10
  6. Step 6: Final answer
    x = 487,288,150,729.28

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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.