Home / 142,330,524.12-213,419,066.22-76,786,804.80

Finding the Fourth Proportional to 142,330,524.12, 213,419,066.22 and 76,786,804.80

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Solution

The fourth proportional to 142,330,524.12, 213,419,066.22 and 76,786,804.80 is: 115,138,817.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,330,524.12 : 213,419,066.22 = 76,786,804.80 : x
  2. Step 2: Convert to fraction form
    142,330,524.12/213,419,066.22 = 76,786,804.80/x
  3. Step 3: Cross multiply
    142,330,524.12x = 213,419,066.22 × 76,786,804.80
  4. Step 4: Simplify right side
    142,330,524.12x = 16,387,768,178,433,414
  5. Step 5: Solve for x
    x = 16,387,768,178,433,414/142,330,524.12
  6. Step 6: Final answer
    x = 115,138,817.06

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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.