Home / 77,213,369.74-115,819,961.66-19,705,647.06

Finding the Fourth Proportional to 77,213,369.74, 115,819,961.66 and 19,705,647.06

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Solution

The fourth proportional to 77,213,369.74, 115,819,961.66 and 19,705,647.06 is: 29,558,446.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,213,369.74 : 115,819,961.66 = 19,705,647.06 : x
  2. Step 2: Convert to fraction form
    77,213,369.74/115,819,961.66 = 19,705,647.06/x
  3. Step 3: Cross multiply
    77,213,369.74x = 115,819,961.66 × 19,705,647.06
  4. Step 4: Simplify right side
    77,213,369.74x = 2,282,307,286,974,691.50
  5. Step 5: Solve for x
    x = 2,282,307,286,974,691.50/77,213,369.74
  6. Step 6: Final answer
    x = 29,558,446.87

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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.