Home / 122,117,711.80-168,524,085.46-66,364,238.92

Finding the Fourth Proportional to 122,117,711.80, 168,524,085.46 and 66,364,238.92

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Solution

The fourth proportional to 122,117,711.80, 168,524,085.46 and 66,364,238.92 is: 91,583,542.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,117,711.80 : 168,524,085.46 = 66,364,238.92 : x
  2. Step 2: Convert to fraction form
    122,117,711.80/168,524,085.46 = 66,364,238.92/x
  3. Step 3: Cross multiply
    122,117,711.80x = 168,524,085.46 × 66,364,238.92
  4. Step 4: Simplify right side
    122,117,711.80x = 11,183,972,671,241,938
  5. Step 5: Solve for x
    x = 11,183,972,671,241,938/122,117,711.80
  6. Step 6: Final answer
    x = 91,583,542.69

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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.