Home / 220,490,973.12-330,736,459.52-82,327,370.07

Finding the Fourth Proportional to 220,490,973.12, 330,736,459.52 and 82,327,370.07

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Solution

The fourth proportional to 220,490,973.12, 330,736,459.52 and 82,327,370.07 is: 123,491,055.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,490,973.12 : 330,736,459.52 = 82,327,370.07 : x
  2. Step 2: Convert to fraction form
    220,490,973.12/330,736,459.52 = 82,327,370.07/x
  3. Step 3: Cross multiply
    220,490,973.12x = 330,736,459.52 × 82,327,370.07
  4. Step 4: Simplify right side
    220,490,973.12x = 27,228,662,898,544,612
  5. Step 5: Solve for x
    x = 27,228,662,898,544,612/220,490,973.12
  6. Step 6: Final answer
    x = 123,491,055.05

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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.