Home / 12,805,659.45-19,199,956.64-7,051,102.92

Finding the Fourth Proportional to 12,805,659.45, 19,199,956.64 and 7,051,102.92

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Solution

The fourth proportional to 12,805,659.45, 19,199,956.64 and 7,051,102.92 is: 10,571,956.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,805,659.45 : 19,199,956.64 = 7,051,102.92 : x
  2. Step 2: Convert to fraction form
    12,805,659.45/19,199,956.64 = 7,051,102.92/x
  3. Step 3: Cross multiply
    12,805,659.45x = 19,199,956.64 × 7,051,102.92
  4. Step 4: Simplify right side
    12,805,659.45x = 135,380,870,292,921.89
  5. Step 5: Solve for x
    x = 135,380,870,292,921.89/12,805,659.45
  6. Step 6: Final answer
    x = 10,571,956.16

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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.