Home / 354,989,094.74-489,903,874.29-198,360,003.86

Finding the Fourth Proportional to 354,989,094.74, 489,903,874.29 and 198,360,003.86

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Solution

The fourth proportional to 354,989,094.74, 489,903,874.29 and 198,360,003.86 is: 273,747,379.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,989,094.74 : 489,903,874.29 = 198,360,003.86 : x
  2. Step 2: Convert to fraction form
    354,989,094.74/489,903,874.29 = 198,360,003.86/x
  3. Step 3: Cross multiply
    354,989,094.74x = 489,903,874.29 × 198,360,003.86
  4. Step 4: Simplify right side
    354,989,094.74x = 97,177,334,395,193,360
  5. Step 5: Solve for x
    x = 97,177,334,395,193,360/354,989,094.74
  6. Step 6: Final answer
    x = 273,747,379.38

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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.