Home / 206,486,047.42-285,010,918.59-134,969,317.90

Finding the Fourth Proportional to 206,486,047.42, 285,010,918.59 and 134,969,317.90

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Solution

The fourth proportional to 206,486,047.42, 285,010,918.59 and 134,969,317.90 is: 186,296,990.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,486,047.42 : 285,010,918.59 = 134,969,317.90 : x
  2. Step 2: Convert to fraction form
    206,486,047.42/285,010,918.59 = 134,969,317.90/x
  3. Step 3: Cross multiply
    206,486,047.42x = 285,010,918.59 × 134,969,317.90
  4. Step 4: Simplify right side
    206,486,047.42x = 38,467,729,276,144,728
  5. Step 5: Solve for x
    x = 38,467,729,276,144,728/206,486,047.42
  6. Step 6: Final answer
    x = 186,296,990.80

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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.