Home / 137,647,669.86-189,958,795.72-74,920,735.44

Finding the Fourth Proportional to 137,647,669.86, 189,958,795.72 and 74,920,735.44

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Solution

The fourth proportional to 137,647,669.86, 189,958,795.72 and 74,920,735.44 is: 103,393,342.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,647,669.86 : 189,958,795.72 = 74,920,735.44 : x
  2. Step 2: Convert to fraction form
    137,647,669.86/189,958,795.72 = 74,920,735.44/x
  3. Step 3: Cross multiply
    137,647,669.86x = 189,958,795.72 × 74,920,735.44
  4. Step 4: Simplify right side
    137,647,669.86x = 14,231,852,678,451,822
  5. Step 5: Solve for x
    x = 14,231,852,678,451,822/137,647,669.86
  6. Step 6: Final answer
    x = 103,393,342.53

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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.