Home / 121,619,321.80-182,174,621.10-56,978,297.80

Finding the Fourth Proportional to 121,619,321.80, 182,174,621.10 and 56,978,297.80

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Solution

The fourth proportional to 121,619,321.80, 182,174,621.10 and 56,978,297.80 is: 85,348,279.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,619,321.80 : 182,174,621.10 = 56,978,297.80 : x
  2. Step 2: Convert to fraction form
    121,619,321.80/182,174,621.10 = 56,978,297.80/x
  3. Step 3: Cross multiply
    121,619,321.80x = 182,174,621.10 × 56,978,297.80
  4. Step 4: Simplify right side
    121,619,321.80x = 10,379,999,812,637,962
  5. Step 5: Solve for x
    x = 10,379,999,812,637,962/121,619,321.80
  6. Step 6: Final answer
    x = 85,348,279.03

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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.