Home / 395,298,755.28-545,512,334.58-219,098,113.92

Finding the Fourth Proportional to 395,298,755.28, 545,512,334.58 and 219,098,113.92

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Solution

The fourth proportional to 395,298,755.28, 545,512,334.58 and 219,098,113.92 is: 302,355,426.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,298,755.28 : 545,512,334.58 = 219,098,113.92 : x
  2. Step 2: Convert to fraction form
    395,298,755.28/545,512,334.58 = 219,098,113.92/x
  3. Step 3: Cross multiply
    395,298,755.28x = 545,512,334.58 × 219,098,113.92
  4. Step 4: Simplify right side
    395,298,755.28x = 119,520,723,626,574,000
  5. Step 5: Solve for x
    x = 119,520,723,626,574,000/395,298,755.28
  6. Step 6: Final answer
    x = 302,355,426.19

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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.