Home / 210,170,830.62-315,134,278.89-99,505,571.57

Finding the Fourth Proportional to 210,170,830.62, 315,134,278.89 and 99,505,571.57

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Solution

The fourth proportional to 210,170,830.62, 315,134,278.89 and 99,505,571.57 is: 149,200,611.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,170,830.62 : 315,134,278.89 = 99,505,571.57 : x
  2. Step 2: Convert to fraction form
    210,170,830.62/315,134,278.89 = 99,505,571.57/x
  3. Step 3: Cross multiply
    210,170,830.62x = 315,134,278.89 × 99,505,571.57
  4. Step 4: Simplify right side
    210,170,830.62x = 31,357,616,542,249,232
  5. Step 5: Solve for x
    x = 31,357,616,542,249,232/210,170,830.62
  6. Step 6: Final answer
    x = 149,200,611.95

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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.