Home / 309,758,495.32-427,491,709.86-177,611,786.20

Finding the Fourth Proportional to 309,758,495.32, 427,491,709.86 and 177,611,786.20

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Solution

The fourth proportional to 309,758,495.32, 427,491,709.86 and 177,611,786.20 is: 245,118,591.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,758,495.32 : 427,491,709.86 = 177,611,786.20 : x
  2. Step 2: Convert to fraction form
    309,758,495.32/427,491,709.86 = 177,611,786.20/x
  3. Step 3: Cross multiply
    309,758,495.32x = 427,491,709.86 × 177,611,786.20
  4. Step 4: Simplify right side
    309,758,495.32x = 75,927,566,173,926,752
  5. Step 5: Solve for x
    x = 75,927,566,173,926,752/309,758,495.32
  6. Step 6: Final answer
    x = 245,118,591.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.