Home / 14,640,138.94-20,203,393.61-8,114,189.72

Finding the Fourth Proportional to 14,640,138.94, 20,203,393.61 and 8,114,189.72

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Solution

The fourth proportional to 14,640,138.94, 20,203,393.61 and 8,114,189.72 is: 11,197,582.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,640,138.94 : 20,203,393.61 = 8,114,189.72 : x
  2. Step 2: Convert to fraction form
    14,640,138.94/20,203,393.61 = 8,114,189.72/x
  3. Step 3: Cross multiply
    14,640,138.94x = 20,203,393.61 × 8,114,189.72
  4. Step 4: Simplify right side
    14,640,138.94x = 163,934,168,658,644.19
  5. Step 5: Solve for x
    x = 163,934,168,658,644.19/14,640,138.94
  6. Step 6: Final answer
    x = 11,197,582.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.