Home / 38,910,838.96-58,365,323.32-12,649,640.60

Finding the Fourth Proportional to 38,910,838.96, 58,365,323.32 and 12,649,640.60

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Solution

The fourth proportional to 38,910,838.96, 58,365,323.32 and 12,649,640.60 is: 18,974,156.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,910,838.96 : 58,365,323.32 = 12,649,640.60 : x
  2. Step 2: Convert to fraction form
    38,910,838.96/58,365,323.32 = 12,649,640.60/x
  3. Step 3: Cross multiply
    38,910,838.96x = 58,365,323.32 × 12,649,640.60
  4. Step 4: Simplify right side
    38,910,838.96x = 738,300,363,177,348.12
  5. Step 5: Solve for x
    x = 738,300,363,177,348.12/38,910,838.96
  6. Step 6: Final answer
    x = 18,974,156.89

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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.