Home / 200,115,821.56-300,225,485.40-117,187,608.55

Finding the Fourth Proportional to 200,115,821.56, 300,225,485.40 and 117,187,608.55

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Solution

The fourth proportional to 200,115,821.56, 300,225,485.40 and 117,187,608.55 is: 175,811,719.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,115,821.56 : 300,225,485.40 = 117,187,608.55 : x
  2. Step 2: Convert to fraction form
    200,115,821.56/300,225,485.40 = 117,187,608.55/x
  3. Step 3: Cross multiply
    200,115,821.56x = 300,225,485.40 × 117,187,608.55
  4. Step 4: Simplify right side
    200,115,821.56x = 35,182,706,659,788,936
  5. Step 5: Solve for x
    x = 35,182,706,659,788,936/200,115,821.56
  6. Step 6: Final answer
    x = 175,811,719.36

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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.