Home / 491,594,538.96-678,400,735.94-265,533,521.58

Finding the Fourth Proportional to 491,594,538.96, 678,400,735.94 and 265,533,521.58

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Solution

The fourth proportional to 491,594,538.96, 678,400,735.94 and 265,533,521.58 is: 366,436,406.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,594,538.96 : 678,400,735.94 = 265,533,521.58 : x
  2. Step 2: Convert to fraction form
    491,594,538.96/678,400,735.94 = 265,533,521.58/x
  3. Step 3: Cross multiply
    491,594,538.96x = 678,400,735.94 × 265,533,521.58
  4. Step 4: Simplify right side
    491,594,538.96x = 180,138,136,456,611,904
  5. Step 5: Solve for x
    x = 180,138,136,456,611,904/491,594,538.96
  6. Step 6: Final answer
    x = 366,436,406.80

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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.