Home / 210,170,829.62-315,134,277.39-99,505,570.57

Finding the Fourth Proportional to 210,170,829.62, 315,134,277.39 and 99,505,570.57

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Solution

The fourth proportional to 210,170,829.62, 315,134,277.39 and 99,505,570.57 is: 149,200,610.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,170,829.62 : 315,134,277.39 = 99,505,570.57 : x
  2. Step 2: Convert to fraction form
    210,170,829.62/315,134,277.39 = 99,505,570.57/x
  3. Step 3: Cross multiply
    210,170,829.62x = 315,134,277.39 × 99,505,570.57
  4. Step 4: Simplify right side
    210,170,829.62x = 31,357,616,077,068,760
  5. Step 5: Solve for x
    x = 31,357,616,077,068,760/210,170,829.62
  6. Step 6: Final answer
    x = 149,200,610.44

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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.