Home / 206,486,047.92-285,010,919.28-134,969,318.40

Finding the Fourth Proportional to 206,486,047.92, 285,010,919.28 and 134,969,318.40

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Solution

The fourth proportional to 206,486,047.92, 285,010,919.28 and 134,969,318.40 is: 186,296,991.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,486,047.92 : 285,010,919.28 = 134,969,318.40 : x
  2. Step 2: Convert to fraction form
    206,486,047.92/285,010,919.28 = 134,969,318.40/x
  3. Step 3: Cross multiply
    206,486,047.92x = 285,010,919.28 × 134,969,318.40
  4. Step 4: Simplify right side
    206,486,047.92x = 38,467,729,511,779,016
  5. Step 5: Solve for x
    x = 38,467,729,511,779,016/206,486,047.92
  6. Step 6: Final answer
    x = 186,296,991.49

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.