Home / 198,925,690,152.96-298,543,269,294.36-138,844,036,811.52

Finding the Fourth Proportional to 198,925,690,152.96, 298,543,269,294.36 and 138,844,036,811.52

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Solution

The fourth proportional to 198,925,690,152.96, 298,543,269,294.36 and 138,844,036,811.52 is: 208,374,054,853.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,925,690,152.96 : 298,543,269,294.36 = 138,844,036,811.52 : x
  2. Step 2: Convert to fraction form
    198,925,690,152.96/298,543,269,294.36 = 138,844,036,811.52/x
  3. Step 3: Cross multiply
    198,925,690,152.96x = 298,543,269,294.36 × 138,844,036,811.52
  4. Step 4: Simplify right side
    198,925,690,152.96x = 41,450,952,671,737,640,124,416
  5. Step 5: Solve for x
    x = 41,450,952,671,737,640,124,416/198,925,690,152.96
  6. Step 6: Final answer
    x = 208,374,054,853.67

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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.