Home / 133,020,072.15-199,530,108.23-87,633,115.35

Finding the Fourth Proportional to 133,020,072.15, 199,530,108.23 and 87,633,115.35

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Solution

The fourth proportional to 133,020,072.15, 199,530,108.23 and 87,633,115.35 is: 131,449,673.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,020,072.15 : 199,530,108.23 = 87,633,115.35 : x
  2. Step 2: Convert to fraction form
    133,020,072.15/199,530,108.23 = 87,633,115.35/x
  3. Step 3: Cross multiply
    133,020,072.15x = 199,530,108.23 × 87,633,115.35
  4. Step 4: Simplify right side
    133,020,072.15x = 17,485,444,989,879,408
  5. Step 5: Solve for x
    x = 17,485,444,989,879,408/133,020,072.15
  6. Step 6: Final answer
    x = 131,449,673.03

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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.