Home / 67,143,759.64-100,715,633.91-18,621,612.81

Finding the Fourth Proportional to 67,143,759.64, 100,715,633.91 and 18,621,612.81

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Solution

The fourth proportional to 67,143,759.64, 100,715,633.91 and 18,621,612.81 is: 27,932,417.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,143,759.64 : 100,715,633.91 = 18,621,612.81 : x
  2. Step 2: Convert to fraction form
    67,143,759.64/100,715,633.91 = 18,621,612.81/x
  3. Step 3: Cross multiply
    67,143,759.64x = 100,715,633.91 × 18,621,612.81
  4. Step 4: Simplify right side
    67,143,759.64x = 1,875,487,538,585,726.25
  5. Step 5: Solve for x
    x = 1,875,487,538,585,726.25/67,143,759.64
  6. Step 6: Final answer
    x = 27,932,417.68

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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.