Home / 121,626,487.91-167,844,500.30-65,871,910.87

Finding the Fourth Proportional to 121,626,487.91, 167,844,500.30 and 65,871,910.87

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Solution

The fourth proportional to 121,626,487.91, 167,844,500.30 and 65,871,910.87 is: 90,903,208.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,626,487.91 : 167,844,500.30 = 65,871,910.87 : x
  2. Step 2: Convert to fraction form
    121,626,487.91/167,844,500.30 = 65,871,910.87/x
  3. Step 3: Cross multiply
    121,626,487.91x = 167,844,500.30 × 65,871,910.87
  4. Step 4: Simplify right side
    121,626,487.91x = 11,056,237,963,781,288
  5. Step 5: Solve for x
    x = 11,056,237,963,781,288/121,626,487.91
  6. Step 6: Final answer
    x = 90,903,208.29

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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.