Home / 206,844,388.40-310,266,582.60-120,680,087.60

Finding the Fourth Proportional to 206,844,388.40, 310,266,582.60 and 120,680,087.60

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Solution

The fourth proportional to 206,844,388.40, 310,266,582.60 and 120,680,087.60 is: 181,020,131.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,844,388.40 : 310,266,582.60 = 120,680,087.60 : x
  2. Step 2: Convert to fraction form
    206,844,388.40/310,266,582.60 = 120,680,087.60/x
  3. Step 3: Cross multiply
    206,844,388.40x = 310,266,582.60 × 120,680,087.60
  4. Step 4: Simplify right side
    206,844,388.40x = 37,442,998,367,520,640
  5. Step 5: Solve for x
    x = 37,442,998,367,520,640/206,844,388.40
  6. Step 6: Final answer
    x = 181,020,131.40

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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.