Home / 20,051,914,039.82-30,078,870,125.13-7,631,207,257.58

Finding the Fourth Proportional to 20,051,914,039.82, 30,078,870,125.13 and 7,631,207,257.58

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Solution

The fourth proportional to 20,051,914,039.82, 30,078,870,125.13 and 7,631,207,257.58 is: 11,447,191,103.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,051,914,039.82 : 30,078,870,125.13 = 7,631,207,257.58 : x
  2. Step 2: Convert to fraction form
    20,051,914,039.82/30,078,870,125.13 = 7,631,207,257.58/x
  3. Step 3: Cross multiply
    20,051,914,039.82x = 30,078,870,125.13 × 7,631,207,257.58
  4. Step 4: Simplify right side
    20,051,914,039.82x = 229,538,091,998,547,902,464
  5. Step 5: Solve for x
    x = 229,538,091,998,547,902,464/20,051,914,039.82
  6. Step 6: Final answer
    x = 11,447,191,103.19

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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.