Home / 68,493,881.60-102,729,885.77-19,960,382.88

Finding the Fourth Proportional to 68,493,881.60, 102,729,885.77 and 19,960,382.88

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Solution

The fourth proportional to 68,493,881.60, 102,729,885.77 and 19,960,382.88 is: 29,937,387.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,493,881.60 : 102,729,885.77 = 19,960,382.88 : x
  2. Step 2: Convert to fraction form
    68,493,881.60/102,729,885.77 = 19,960,382.88/x
  3. Step 3: Cross multiply
    68,493,881.60x = 102,729,885.77 × 19,960,382.88
  4. Step 4: Simplify right side
    68,493,881.60x = 2,050,527,852,674,214
  5. Step 5: Solve for x
    x = 2,050,527,852,674,214/68,493,881.60
  6. Step 6: Final answer
    x = 29,937,387.18

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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.