Home / 143,395,589,003.49-197,975,218,839.66-91,281,724,193.31

Finding the Fourth Proportional to 143,395,589,003.49, 197,975,218,839.66 and 91,281,724,193.31

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Solution

The fourth proportional to 143,395,589,003.49, 197,975,218,839.66 and 91,281,724,193.31 is: 126,025,629,162.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,395,589,003.49 : 197,975,218,839.66 = 91,281,724,193.31 : x
  2. Step 2: Convert to fraction form
    143,395,589,003.49/197,975,218,839.66 = 91,281,724,193.31/x
  3. Step 3: Cross multiply
    143,395,589,003.49x = 197,975,218,839.66 × 91,281,724,193.31
  4. Step 4: Simplify right side
    143,395,589,003.49x = 18,071,519,323,231,637,995,520
  5. Step 5: Solve for x
    x = 18,071,519,323,231,637,995,520/143,395,589,003.49
  6. Step 6: Final answer
    x = 126,025,629,162.08

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.