Home / 99,861,186.40-149,460,003.60-72,489,666.40

Finding the Fourth Proportional to 99,861,186.40, 149,460,003.60 and 72,489,666.40

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Solution

The fourth proportional to 99,861,186.40, 149,460,003.60 and 72,489,666.40 is: 108,493,661.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,861,186.40 : 149,460,003.60 = 72,489,666.40 : x
  2. Step 2: Convert to fraction form
    99,861,186.40/149,460,003.60 = 72,489,666.40/x
  3. Step 3: Cross multiply
    99,861,186.40x = 149,460,003.60 × 72,489,666.40
  4. Step 4: Simplify right side
    99,861,186.40x = 10,834,305,801,106,800
  5. Step 5: Solve for x
    x = 10,834,305,801,106,800/99,861,186.40
  6. Step 6: Final answer
    x = 108,493,661.97

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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.