Home / 122,191,931.25-168,623,679.60-66,437,350.92

Finding the Fourth Proportional to 122,191,931.25, 168,623,679.60 and 66,437,350.92

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Solution

The fourth proportional to 122,191,931.25, 168,623,679.60 and 66,437,350.92 is: 91,682,899.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,191,931.25 : 168,623,679.60 = 66,437,350.92 : x
  2. Step 2: Convert to fraction form
    122,191,931.25/168,623,679.60 = 66,437,350.92/x
  3. Step 3: Cross multiply
    122,191,931.25x = 168,623,679.60 × 66,437,350.92
  4. Step 4: Simplify right side
    122,191,931.25x = 11,202,910,575,006,846
  5. Step 5: Solve for x
    x = 11,202,910,575,006,846/122,191,931.25
  6. Step 6: Final answer
    x = 91,682,899.68

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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.