Home / 394,894,741.20-592,342,111.80-280,103,485.20

Finding the Fourth Proportional to 394,894,741.20, 592,342,111.80 and 280,103,485.20

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Solution

The fourth proportional to 394,894,741.20, 592,342,111.80 and 280,103,485.20 is: 420,155,227.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,894,741.20 : 592,342,111.80 = 280,103,485.20 : x
  2. Step 2: Convert to fraction form
    394,894,741.20/592,342,111.80 = 280,103,485.20/x
  3. Step 3: Cross multiply
    394,894,741.20x = 592,342,111.80 × 280,103,485.20
  4. Step 4: Simplify right side
    394,894,741.20x = 165,917,089,945,908,032
  5. Step 5: Solve for x
    x = 165,917,089,945,908,032/394,894,741.20
  6. Step 6: Final answer
    x = 420,155,227.80

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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.