Home / 12,138,733.80-18,208,100.70-3,163,285.80

Finding the Fourth Proportional to 12,138,733.80, 18,208,100.70 and 3,163,285.80

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Solution

The fourth proportional to 12,138,733.80, 18,208,100.70 and 3,163,285.80 is: 4,744,928.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,138,733.80 : 18,208,100.70 = 3,163,285.80 : x
  2. Step 2: Convert to fraction form
    12,138,733.80/18,208,100.70 = 3,163,285.80/x
  3. Step 3: Cross multiply
    12,138,733.80x = 18,208,100.70 × 3,163,285.80
  4. Step 4: Simplify right side
    12,138,733.80x = 57,597,426,389,280.05
  5. Step 5: Solve for x
    x = 57,597,426,389,280.05/12,138,733.80
  6. Step 6: Final answer
    x = 4,744,928.70

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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.