Home / 638,682,601.44-958,017,515.52-201,983,360.16

Finding the Fourth Proportional to 638,682,601.44, 958,017,515.52 and 201,983,360.16

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Solution

The fourth proportional to 638,682,601.44, 958,017,515.52 and 201,983,360.16 is: 302,973,020.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,682,601.44 : 958,017,515.52 = 201,983,360.16 : x
  2. Step 2: Convert to fraction form
    638,682,601.44/958,017,515.52 = 201,983,360.16/x
  3. Step 3: Cross multiply
    638,682,601.44x = 958,017,515.52 × 201,983,360.16
  4. Step 4: Simplify right side
    638,682,601.44x = 193,503,596,876,864,544
  5. Step 5: Solve for x
    x = 193,503,596,876,864,544/638,682,601.44
  6. Step 6: Final answer
    x = 302,973,020.47

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.