Home / 13,118,844.20-18,104,455.20-7,611,803.24

Finding the Fourth Proportional to 13,118,844.20, 18,104,455.20 and 7,611,803.24

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Solution

The fourth proportional to 13,118,844.20, 18,104,455.20 and 7,611,803.24 is: 10,504,549.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,118,844.20 : 18,104,455.20 = 7,611,803.24 : x
  2. Step 2: Convert to fraction form
    13,118,844.20/18,104,455.20 = 7,611,803.24/x
  3. Step 3: Cross multiply
    13,118,844.20x = 18,104,455.20 × 7,611,803.24
  4. Step 4: Simplify right side
    13,118,844.20x = 137,807,550,749,794.84
  5. Step 5: Solve for x
    x = 137,807,550,749,794.84/13,118,844.20
  6. Step 6: Final answer
    x = 10,504,549.69

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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.