Home / 645,983,738.08-891,339,968.34-363,682,278.88

Finding the Fourth Proportional to 645,983,738.08, 891,339,968.34 and 363,682,278.88

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Solution

The fourth proportional to 645,983,738.08, 891,339,968.34 and 363,682,278.88 is: 501,815,342.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,983,738.08 : 891,339,968.34 = 363,682,278.88 : x
  2. Step 2: Convert to fraction form
    645,983,738.08/891,339,968.34 = 363,682,278.88/x
  3. Step 3: Cross multiply
    645,983,738.08x = 891,339,968.34 × 363,682,278.88
  4. Step 4: Simplify right side
    645,983,738.08x = 324,164,550,942,718,272
  5. Step 5: Solve for x
    x = 324,164,550,942,718,272/645,983,738.08
  6. Step 6: Final answer
    x = 501,815,342.76

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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.