Home / 212,904,007.20-318,908,113.20-177,072,199.20

Finding the Fourth Proportional to 212,904,007.20, 318,908,113.20 and 177,072,199.20

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Solution

The fourth proportional to 212,904,007.20, 318,908,113.20 and 177,072,199.20 is: 265,235,782.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,904,007.20 : 318,908,113.20 = 177,072,199.20 : x
  2. Step 2: Convert to fraction form
    212,904,007.20/318,908,113.20 = 177,072,199.20/x
  3. Step 3: Cross multiply
    212,904,007.20x = 318,908,113.20 × 177,072,199.20
  4. Step 4: Simplify right side
    212,904,007.20x = 56,469,760,947,046,544
  5. Step 5: Solve for x
    x = 56,469,760,947,046,544/212,904,007.20
  6. Step 6: Final answer
    x = 265,235,782.50

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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.