Home / 419,905,024.60-629,857,536.90-386,743,106.20

Finding the Fourth Proportional to 419,905,024.60, 629,857,536.90 and 386,743,106.20

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Solution

The fourth proportional to 419,905,024.60, 629,857,536.90 and 386,743,106.20 is: 580,114,659.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,905,024.60 : 629,857,536.90 = 386,743,106.20 : x
  2. Step 2: Convert to fraction form
    419,905,024.60/629,857,536.90 = 386,743,106.20/x
  3. Step 3: Cross multiply
    419,905,024.60x = 629,857,536.90 × 386,743,106.20
  4. Step 4: Simplify right side
    419,905,024.60x = 243,593,060,284,187,104
  5. Step 5: Solve for x
    x = 243,593,060,284,187,104/419,905,024.60
  6. Step 6: Final answer
    x = 580,114,659.30

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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.