Home / 140,870,459.40-211,410,665.10-72,678,049.80

Finding the Fourth Proportional to 140,870,459.40, 211,410,665.10 and 72,678,049.80

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Solution

The fourth proportional to 140,870,459.40, 211,410,665.10 and 72,678,049.80 is: 109,071,234.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,870,459.40 : 211,410,665.10 = 72,678,049.80 : x
  2. Step 2: Convert to fraction form
    140,870,459.40/211,410,665.10 = 72,678,049.80/x
  3. Step 3: Cross multiply
    140,870,459.40x = 211,410,665.10 × 72,678,049.80
  4. Step 4: Simplify right side
    140,870,459.40x = 15,364,914,846,388,920
  5. Step 5: Solve for x
    x = 15,364,914,846,388,920/140,870,459.40
  6. Step 6: Final answer
    x = 109,071,234.04

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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.