Home / 90,633,021.70-135,950,485.96-72,552,156.42

Finding the Fourth Proportional to 90,633,021.70, 135,950,485.96 and 72,552,156.42

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Solution

The fourth proportional to 90,633,021.70, 135,950,485.96 and 72,552,156.42 is: 108,828,997.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,633,021.70 : 135,950,485.96 = 72,552,156.42 : x
  2. Step 2: Convert to fraction form
    90,633,021.70/135,950,485.96 = 72,552,156.42/x
  3. Step 3: Cross multiply
    90,633,021.70x = 135,950,485.96 × 72,552,156.42
  4. Step 4: Simplify right side
    90,633,021.70x = 9,863,500,922,744,934
  5. Step 5: Solve for x
    x = 9,863,500,922,744,934/90,633,021.70
  6. Step 6: Final answer
    x = 108,828,997.84

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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.