Home / 472,771,564.28-708,593,145.77-220,039,633.79

Finding the Fourth Proportional to 472,771,564.28, 708,593,145.77 and 220,039,633.79

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Solution

The fourth proportional to 472,771,564.28, 708,593,145.77 and 220,039,633.79 is: 329,796,857.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,771,564.28 : 708,593,145.77 = 220,039,633.79 : x
  2. Step 2: Convert to fraction form
    472,771,564.28/708,593,145.77 = 220,039,633.79/x
  3. Step 3: Cross multiply
    472,771,564.28x = 708,593,145.77 × 220,039,633.79
  4. Step 4: Simplify right side
    472,771,564.28x = 155,918,576,297,791,904
  5. Step 5: Solve for x
    x = 155,918,576,297,791,904/472,771,564.28
  6. Step 6: Final answer
    x = 329,796,857.68

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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.