Home / 68,814,454.36-103,223,917.18-20,288,238.92

Finding the Fourth Proportional to 68,814,454.36, 103,223,917.18 and 20,288,238.92

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Solution

The fourth proportional to 68,814,454.36, 103,223,917.18 and 20,288,238.92 is: 30,433,017.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,814,454.36 : 103,223,917.18 = 20,288,238.92 : x
  2. Step 2: Convert to fraction form
    68,814,454.36/103,223,917.18 = 20,288,238.92/x
  3. Step 3: Cross multiply
    68,814,454.36x = 103,223,917.18 × 20,288,238.92
  4. Step 4: Simplify right side
    68,814,454.36x = 2,094,231,494,006,133
  5. Step 5: Solve for x
    x = 2,094,231,494,006,133/68,814,454.36
  6. Step 6: Final answer
    x = 30,433,017.50

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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.