Home / 120,292,081.04-166,004,664.36-65,288,596.88

Finding the Fourth Proportional to 120,292,081.04, 166,004,664.36 and 65,288,596.88

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Solution

The fourth proportional to 120,292,081.04, 166,004,664.36 and 65,288,596.88 is: 90,099,128.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,292,081.04 : 166,004,664.36 = 65,288,596.88 : x
  2. Step 2: Convert to fraction form
    120,292,081.04/166,004,664.36 = 65,288,596.88/x
  3. Step 3: Cross multiply
    120,292,081.04x = 166,004,664.36 × 65,288,596.88
  4. Step 4: Simplify right side
    120,292,081.04x = 10,838,211,611,599,744
  5. Step 5: Solve for x
    x = 10,838,211,611,599,744/120,292,081.04
  6. Step 6: Final answer
    x = 90,099,128.04

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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.