Home / 217,223,837.60-325,835,756.40-125,390,832.80

Finding the Fourth Proportional to 217,223,837.60, 325,835,756.40 and 125,390,832.80

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Solution

The fourth proportional to 217,223,837.60, 325,835,756.40 and 125,390,832.80 is: 188,086,249.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,223,837.60 : 325,835,756.40 = 125,390,832.80 : x
  2. Step 2: Convert to fraction form
    217,223,837.60/325,835,756.40 = 125,390,832.80/x
  3. Step 3: Cross multiply
    217,223,837.60x = 325,835,756.40 × 125,390,832.80
  4. Step 4: Simplify right side
    217,223,837.60x = 40,856,816,851,013,928
  5. Step 5: Solve for x
    x = 40,856,816,851,013,928/217,223,837.60
  6. Step 6: Final answer
    x = 188,086,249.20

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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.