Home / 125,764,638,625.41-188,580,763,510.68-85,981,790,635.35

Finding the Fourth Proportional to 125,764,638,625.41, 188,580,763,510.68 and 85,981,790,635.35

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Solution

The fourth proportional to 125,764,638,625.41, 188,580,763,510.68 and 85,981,790,635.35 is: 128,927,430,661.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,764,638,625.41 : 188,580,763,510.68 = 85,981,790,635.35 : x
  2. Step 2: Convert to fraction form
    125,764,638,625.41/188,580,763,510.68 = 85,981,790,635.35/x
  3. Step 3: Cross multiply
    125,764,638,625.41x = 188,580,763,510.68 × 85,981,790,635.35
  4. Step 4: Simplify right side
    125,764,638,625.41x = 16,214,511,726,029,738,868,736
  5. Step 5: Solve for x
    x = 16,214,511,726,029,738,868,736/125,764,638,625.41
  6. Step 6: Final answer
    x = 128,927,430,661.37

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.