Home / 213,054,411.20-319,581,616.80-131,238,449.60

Finding the Fourth Proportional to 213,054,411.20, 319,581,616.80 and 131,238,449.60

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Solution

The fourth proportional to 213,054,411.20, 319,581,616.80 and 131,238,449.60 is: 196,857,674.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,054,411.20 : 319,581,616.80 = 131,238,449.60 : x
  2. Step 2: Convert to fraction form
    213,054,411.20/319,581,616.80 = 131,238,449.60/x
  3. Step 3: Cross multiply
    213,054,411.20x = 319,581,616.80 × 131,238,449.60
  4. Step 4: Simplify right side
    213,054,411.20x = 41,941,395,909,493,312
  5. Step 5: Solve for x
    x = 41,941,395,909,493,312/213,054,411.20
  6. Step 6: Final answer
    x = 196,857,674.40

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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.