Home / 172,628,445.18-258,979,992.57-91,837,671.42

Finding the Fourth Proportional to 172,628,445.18, 258,979,992.57 and 91,837,671.42

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Solution

The fourth proportional to 172,628,445.18, 258,979,992.57 and 91,837,671.42 is: 137,776,363.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,628,445.18 : 258,979,992.57 = 91,837,671.42 : x
  2. Step 2: Convert to fraction form
    172,628,445.18/258,979,992.57 = 91,837,671.42/x
  3. Step 3: Cross multiply
    172,628,445.18x = 258,979,992.57 × 91,837,671.42
  4. Step 4: Simplify right side
    172,628,445.18x = 23,784,119,461,997,700
  5. Step 5: Solve for x
    x = 23,784,119,461,997,700/172,628,445.18
  6. Step 6: Final answer
    x = 137,776,363.78

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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.