Home / 392,496,734.30-541,649,125.86-216,291,035.57

Finding the Fourth Proportional to 392,496,734.30, 541,649,125.86 and 216,291,035.57

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Solution

The fourth proportional to 392,496,734.30, 541,649,125.86 and 216,291,035.57 is: 298,483,630.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,496,734.30 : 541,649,125.86 = 216,291,035.57 : x
  2. Step 2: Convert to fraction form
    392,496,734.30/541,649,125.86 = 216,291,035.57/x
  3. Step 3: Cross multiply
    392,496,734.30x = 541,649,125.86 × 216,291,035.57
  4. Step 4: Simplify right side
    392,496,734.30x = 117,153,850,347,844,672
  5. Step 5: Solve for x
    x = 117,153,850,347,844,672/392,496,734.30
  6. Step 6: Final answer
    x = 298,483,630.84

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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.