Home / 133,020,069.90-199,530,104.85-87,633,113.10

Finding the Fourth Proportional to 133,020,069.90, 199,530,104.85 and 87,633,113.10

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Solution

The fourth proportional to 133,020,069.90, 199,530,104.85 and 87,633,113.10 is: 131,449,669.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,020,069.90 : 199,530,104.85 = 87,633,113.10 : x
  2. Step 2: Convert to fraction form
    133,020,069.90/199,530,104.85 = 87,633,113.10/x
  3. Step 3: Cross multiply
    133,020,069.90x = 199,530,104.85 × 87,633,113.10
  4. Step 4: Simplify right side
    133,020,069.90x = 17,485,444,245,174,906
  5. Step 5: Solve for x
    x = 17,485,444,245,174,906/133,020,069.90
  6. Step 6: Final answer
    x = 131,449,669.65

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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.