Home / 354,263,139.20-531,394,708.80-199,294,943.60

Finding the Fourth Proportional to 354,263,139.20, 531,394,708.80 and 199,294,943.60

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Solution

The fourth proportional to 354,263,139.20, 531,394,708.80 and 199,294,943.60 is: 298,942,415.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,263,139.20 : 531,394,708.80 = 199,294,943.60 : x
  2. Step 2: Convert to fraction form
    354,263,139.20/531,394,708.80 = 199,294,943.60/x
  3. Step 3: Cross multiply
    354,263,139.20x = 531,394,708.80 × 199,294,943.60
  4. Step 4: Simplify right side
    354,263,139.20x = 105,904,278,519,634,416
  5. Step 5: Solve for x
    x = 105,904,278,519,634,416/354,263,139.20
  6. Step 6: Final answer
    x = 298,942,415.40

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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.