Home / 80,567,476.49-120,765,172.87-45,949,336.98

Finding the Fourth Proportional to 80,567,476.49, 120,765,172.87 and 45,949,336.98

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Solution

The fourth proportional to 80,567,476.49, 120,765,172.87 and 45,949,336.98 is: 68,874,933.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,567,476.49 : 120,765,172.87 = 45,949,336.98 : x
  2. Step 2: Convert to fraction form
    80,567,476.49/120,765,172.87 = 45,949,336.98/x
  3. Step 3: Cross multiply
    80,567,476.49x = 120,765,172.87 × 45,949,336.98
  4. Step 4: Simplify right side
    80,567,476.49x = 5,549,079,624,161,890
  5. Step 5: Solve for x
    x = 5,549,079,624,161,890/80,567,476.49
  6. Step 6: Final answer
    x = 68,874,933.98

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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.