Home / 101,727,920.80-152,591,881.20-90,642,455.20

Finding the Fourth Proportional to 101,727,920.80, 152,591,881.20 and 90,642,455.20

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Solution

The fourth proportional to 101,727,920.80, 152,591,881.20 and 90,642,455.20 is: 135,963,682.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,727,920.80 : 152,591,881.20 = 90,642,455.20 : x
  2. Step 2: Convert to fraction form
    101,727,920.80/152,591,881.20 = 90,642,455.20/x
  3. Step 3: Cross multiply
    101,727,920.80x = 152,591,881.20 × 90,642,455.20
  4. Step 4: Simplify right side
    101,727,920.80x = 13,831,302,755,554,722
  5. Step 5: Solve for x
    x = 13,831,302,755,554,722/101,727,920.80
  6. Step 6: Final answer
    x = 135,963,682.80

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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.