Home / 12,068,989.80-18,103,484.70-11,509,117.80

Finding the Fourth Proportional to 12,068,989.80, 18,103,484.70 and 11,509,117.80

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Solution

The fourth proportional to 12,068,989.80, 18,103,484.70 and 11,509,117.80 is: 17,263,676.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,068,989.80 : 18,103,484.70 = 11,509,117.80 : x
  2. Step 2: Convert to fraction form
    12,068,989.80/18,103,484.70 = 11,509,117.80/x
  3. Step 3: Cross multiply
    12,068,989.80x = 18,103,484.70 × 11,509,117.80
  4. Step 4: Simplify right side
    12,068,989.80x = 208,355,138,002,797.66
  5. Step 5: Solve for x
    x = 208,355,138,002,797.66/12,068,989.80
  6. Step 6: Final answer
    x = 17,263,676.70

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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.