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Finding the Fourth Proportional to 67,144,003.80, 100,716,005.70 and 18,621,763.80

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Solution

The fourth proportional to 67,144,003.80, 100,716,005.70 and 18,621,763.80 is: 27,932,645.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,144,003.80 : 100,716,005.70 = 18,621,763.80 : x
  2. Step 2: Convert to fraction form
    67,144,003.80/100,716,005.70 = 18,621,763.80/x
  3. Step 3: Cross multiply
    67,144,003.80x = 100,716,005.70 × 18,621,763.80
  4. Step 4: Simplify right side
    67,144,003.80x = 1,875,509,669,024,853.75
  5. Step 5: Solve for x
    x = 1,875,509,669,024,853.75/67,144,003.80
  6. Step 6: Final answer
    x = 27,932,645.70

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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.