Home / 204,289,969.20-306,434,953.80-127,699,479.60

Finding the Fourth Proportional to 204,289,969.20, 306,434,953.80 and 127,699,479.60

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Solution

The fourth proportional to 204,289,969.20, 306,434,953.80 and 127,699,479.60 is: 191,549,219.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,289,969.20 : 306,434,953.80 = 127,699,479.60 : x
  2. Step 2: Convert to fraction form
    204,289,969.20/306,434,953.80 = 127,699,479.60/x
  3. Step 3: Cross multiply
    204,289,969.20x = 306,434,953.80 × 127,699,479.60
  4. Step 4: Simplify right side
    204,289,969.20x = 39,131,584,131,510,040
  5. Step 5: Solve for x
    x = 39,131,584,131,510,040/204,289,969.20
  6. Step 6: Final answer
    x = 191,549,219.40

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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.