Home / 120,236,813.50-165,927,121.32-65,232,670

Finding the Fourth Proportional to 120,236,813.50, 165,927,121.32 and 65,232,670

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Solution

The fourth proportional to 120,236,813.50, 165,927,121.32 and 65,232,670 is: 90,021,257.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,236,813.50 : 165,927,121.32 = 65,232,670 : x
  2. Step 2: Convert to fraction form
    120,236,813.50/165,927,121.32 = 65,232,670/x
  3. Step 3: Cross multiply
    120,236,813.50x = 165,927,121.32 × 65,232,670
  4. Step 4: Simplify right side
    120,236,813.50x = 10,823,869,149,117,524
  5. Step 5: Solve for x
    x = 10,823,869,149,117,524/120,236,813.50
  6. Step 6: Final answer
    x = 90,021,257.50

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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.