Home / 120,294,149.60-166,006,087.80-65,289,991.52

Finding the Fourth Proportional to 120,294,149.60, 166,006,087.80 and 65,289,991.52

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Solution

The fourth proportional to 120,294,149.60, 166,006,087.80 and 65,289,991.52 is: 90,100,275.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,294,149.60 : 166,006,087.80 = 65,289,991.52 : x
  2. Step 2: Convert to fraction form
    120,294,149.60/166,006,087.80 = 65,289,991.52/x
  3. Step 3: Cross multiply
    120,294,149.60x = 166,006,087.80 × 65,289,991.52
  4. Step 4: Simplify right side
    120,294,149.60x = 10,838,536,064,730,376
  5. Step 5: Solve for x
    x = 10,838,536,064,730,376/120,294,149.60
  6. Step 6: Final answer
    x = 90,100,275.87

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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.