Home / 447,121,917.81-670,969,855.13-216,965,449.53

Finding the Fourth Proportional to 447,121,917.81, 670,969,855.13 and 216,965,449.53

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Solution

The fourth proportional to 447,121,917.81, 670,969,855.13 and 216,965,449.53 is: 325,587,430.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,121,917.81 : 670,969,855.13 = 216,965,449.53 : x
  2. Step 2: Convert to fraction form
    447,121,917.81/670,969,855.13 = 216,965,449.53/x
  3. Step 3: Cross multiply
    447,121,917.81x = 670,969,855.13 × 216,965,449.53
  4. Step 4: Simplify right side
    447,121,917.81x = 145,577,276,238,274,592
  5. Step 5: Solve for x
    x = 145,577,276,238,274,592/447,121,917.81
  6. Step 6: Final answer
    x = 325,587,430.27

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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.