Home / 213,192,097.20-319,788,145.80-178,754,720.40

Finding the Fourth Proportional to 213,192,097.20, 319,788,145.80 and 178,754,720.40

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Solution

The fourth proportional to 213,192,097.20, 319,788,145.80 and 178,754,720.40 is: 268,132,080.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,192,097.20 : 319,788,145.80 = 178,754,720.40 : x
  2. Step 2: Convert to fraction form
    213,192,097.20/319,788,145.80 = 178,754,720.40/x
  3. Step 3: Cross multiply
    213,192,097.20x = 319,788,145.80 × 178,754,720.40
  4. Step 4: Simplify right side
    213,192,097.20x = 57,163,640,589,713,440
  5. Step 5: Solve for x
    x = 57,163,640,589,713,440/213,192,097.20
  6. Step 6: Final answer
    x = 268,132,080.60

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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.