Home / 220,239,167.69-303,923,982.20-121,119,913.01

Finding the Fourth Proportional to 220,239,167.69, 303,923,982.20 and 121,119,913.01

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Solution

The fourth proportional to 220,239,167.69, 303,923,982.20 and 121,119,913.01 is: 167,142,142.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,239,167.69 : 303,923,982.20 = 121,119,913.01 : x
  2. Step 2: Convert to fraction form
    220,239,167.69/303,923,982.20 = 121,119,913.01/x
  3. Step 3: Cross multiply
    220,239,167.69x = 303,923,982.20 × 121,119,913.01
  4. Step 4: Simplify right side
    220,239,167.69x = 36,811,246,285,871,000
  5. Step 5: Solve for x
    x = 36,811,246,285,871,000/220,239,167.69
  6. Step 6: Final answer
    x = 167,142,142.21

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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.