Home / 213,132,380.10-319,698,570.15-131,343,610.20

Finding the Fourth Proportional to 213,132,380.10, 319,698,570.15 and 131,343,610.20

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Solution

The fourth proportional to 213,132,380.10, 319,698,570.15 and 131,343,610.20 is: 197,015,415.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,132,380.10 : 319,698,570.15 = 131,343,610.20 : x
  2. Step 2: Convert to fraction form
    213,132,380.10/319,698,570.15 = 131,343,610.20/x
  3. Step 3: Cross multiply
    213,132,380.10x = 319,698,570.15 × 131,343,610.20
  4. Step 4: Simplify right side
    213,132,380.10x = 41,990,364,379,278,952
  5. Step 5: Solve for x
    x = 41,990,364,379,278,952/213,132,380.10
  6. Step 6: Final answer
    x = 197,015,415.30

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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.