Home / 782,352,004.80-1,173,528,007.20-394,024,785.60

Finding the Fourth Proportional to 782,352,004.80, 1,173,528,007.20 and 394,024,785.60

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Solution

The fourth proportional to 782,352,004.80, 1,173,528,007.20 and 394,024,785.60 is: 591,037,178.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,352,004.80 : 1,173,528,007.20 = 394,024,785.60 : x
  2. Step 2: Convert to fraction form
    782,352,004.80/1,173,528,007.20 = 394,024,785.60/x
  3. Step 3: Cross multiply
    782,352,004.80x = 1,173,528,007.20 × 394,024,785.60
  4. Step 4: Simplify right side
    782,352,004.80x = 462,399,121,432,575,296
  5. Step 5: Solve for x
    x = 462,399,121,432,575,296/782,352,004.80
  6. Step 6: Final answer
    x = 591,037,178.40

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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.