Home / 328,536,418.80-492,804,628.20-199,289,967.60

Finding the Fourth Proportional to 328,536,418.80, 492,804,628.20 and 199,289,967.60

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Solution

The fourth proportional to 328,536,418.80, 492,804,628.20 and 199,289,967.60 is: 298,934,951.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,536,418.80 : 492,804,628.20 = 199,289,967.60 : x
  2. Step 2: Convert to fraction form
    328,536,418.80/492,804,628.20 = 199,289,967.60/x
  3. Step 3: Cross multiply
    328,536,418.80x = 492,804,628.20 × 199,289,967.60
  4. Step 4: Simplify right side
    328,536,418.80x = 98,211,018,387,108,048
  5. Step 5: Solve for x
    x = 98,211,018,387,108,048/328,536,418.80
  6. Step 6: Final answer
    x = 298,934,951.40

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1.5x scale

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.