Home / 354,264,739.20-531,397,108.80-199,296,543.60

Finding the Fourth Proportional to 354,264,739.20, 531,397,108.80 and 199,296,543.60

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Solution

The fourth proportional to 354,264,739.20, 531,397,108.80 and 199,296,543.60 is: 298,944,815.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,264,739.20 : 531,397,108.80 = 199,296,543.60 : x
  2. Step 2: Convert to fraction form
    354,264,739.20/531,397,108.80 = 199,296,543.60/x
  3. Step 3: Cross multiply
    354,264,739.20x = 531,397,108.80 × 199,296,543.60
  4. Step 4: Simplify right side
    354,264,739.20x = 105,905,607,062,873,136
  5. Step 5: Solve for x
    x = 105,905,607,062,873,136/354,264,739.20
  6. Step 6: Final answer
    x = 298,944,815.40

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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.