Home / 120,292,087.04-166,004,672.64-65,288,602.88

Finding the Fourth Proportional to 120,292,087.04, 166,004,672.64 and 65,288,602.88

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Solution

The fourth proportional to 120,292,087.04, 166,004,672.64 and 65,288,602.88 is: 90,099,136.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,292,087.04 : 166,004,672.64 = 65,288,602.88 : x
  2. Step 2: Convert to fraction form
    120,292,087.04/166,004,672.64 = 65,288,602.88/x
  3. Step 3: Cross multiply
    120,292,087.04x = 166,004,672.64 × 65,288,602.88
  4. Step 4: Simplify right side
    120,292,087.04x = 10,838,213,148,217,360
  5. Step 5: Solve for x
    x = 10,838,213,148,217,360/120,292,087.04
  6. Step 6: Final answer
    x = 90,099,136.32

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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.