Home / 13,200,936.12-18,221,088.57-7,973,113.89

Finding the Fourth Proportional to 13,200,936.12, 18,221,088.57 and 7,973,113.89

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Solution

The fourth proportional to 13,200,936.12, 18,221,088.57 and 7,973,113.89 is: 11,005,190.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,200,936.12 : 18,221,088.57 = 7,973,113.89 : x
  2. Step 2: Convert to fraction form
    13,200,936.12/18,221,088.57 = 7,973,113.89/x
  3. Step 3: Cross multiply
    13,200,936.12x = 18,221,088.57 × 7,973,113.89
  4. Step 4: Simplify right side
    13,200,936.12x = 145,278,814,437,261.56
  5. Step 5: Solve for x
    x = 145,278,814,437,261.56/13,200,936.12
  6. Step 6: Final answer
    x = 11,005,190.32

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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.