Home / 142,170,907.68-213,231,975.66-45,104,979.96

Finding the Fourth Proportional to 142,170,907.68, 213,231,975.66 and 45,104,979.96

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Solution

The fourth proportional to 142,170,907.68, 213,231,975.66 and 45,104,979.96 is: 67,649,733.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,170,907.68 : 213,231,975.66 = 45,104,979.96 : x
  2. Step 2: Convert to fraction form
    142,170,907.68/213,231,975.66 = 45,104,979.96/x
  3. Step 3: Cross multiply
    142,170,907.68x = 213,231,975.66 × 45,104,979.96
  4. Step 4: Simplify right side
    142,170,907.68x = 9,617,823,988,975,508
  5. Step 5: Solve for x
    x = 9,617,823,988,975,508/142,170,907.68
  6. Step 6: Final answer
    x = 67,649,733.31

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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.