Home / 68,493,881.22-102,729,885.21-19,960,382.50

Finding the Fourth Proportional to 68,493,881.22, 102,729,885.21 and 19,960,382.50

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Solution

The fourth proportional to 68,493,881.22, 102,729,885.21 and 19,960,382.50 is: 29,937,386.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,493,881.22 : 102,729,885.21 = 19,960,382.50 : x
  2. Step 2: Convert to fraction form
    68,493,881.22/102,729,885.21 = 19,960,382.50/x
  3. Step 3: Cross multiply
    68,493,881.22x = 102,729,885.21 × 19,960,382.50
  4. Step 4: Simplify right side
    68,493,881.22x = 2,050,527,802,972,692.75
  5. Step 5: Solve for x
    x = 2,050,527,802,972,692.75/68,493,881.22
  6. Step 6: Final answer
    x = 29,937,386.62

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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.