Home / 645,983,725.10-891,339,950.43-363,682,265.90

Finding the Fourth Proportional to 645,983,725.10, 891,339,950.43 and 363,682,265.90

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Solution

The fourth proportional to 645,983,725.10, 891,339,950.43 and 363,682,265.90 is: 501,815,324.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,983,725.10 : 891,339,950.43 = 363,682,265.90 : x
  2. Step 2: Convert to fraction form
    645,983,725.10/891,339,950.43 = 363,682,265.90/x
  3. Step 3: Cross multiply
    645,983,725.10x = 891,339,950.43 × 363,682,265.90
  4. Step 4: Simplify right side
    645,983,725.10x = 324,164,532,855,119,360
  5. Step 5: Solve for x
    x = 324,164,532,855,119,360/645,983,725.10
  6. Step 6: Final answer
    x = 501,815,324.85

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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.