Home / 68,493,881.54-102,729,885.68-19,960,382.81

Finding the Fourth Proportional to 68,493,881.54, 102,729,885.68 and 19,960,382.81

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Solution

The fourth proportional to 68,493,881.54, 102,729,885.68 and 19,960,382.81 is: 29,937,387.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,493,881.54 : 102,729,885.68 = 19,960,382.81 : x
  2. Step 2: Convert to fraction form
    68,493,881.54/102,729,885.68 = 19,960,382.81/x
  3. Step 3: Cross multiply
    68,493,881.54x = 102,729,885.68 × 19,960,382.81
  4. Step 4: Simplify right side
    68,493,881.54x = 2,050,527,844,394,686
  5. Step 5: Solve for x
    x = 2,050,527,844,394,686/68,493,881.54
  6. Step 6: Final answer
    x = 29,937,387.08

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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.