Home / 13,606,326.72-20,409,956.64-7,207,922.88

Finding the Fourth Proportional to 13,606,326.72, 20,409,956.64 and 7,207,922.88

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Solution

The fourth proportional to 13,606,326.72, 20,409,956.64 and 7,207,922.88 is: 10,812,131.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,606,326.72 : 20,409,956.64 = 7,207,922.88 : x
  2. Step 2: Convert to fraction form
    13,606,326.72/20,409,956.64 = 7,207,922.88/x
  3. Step 3: Cross multiply
    13,606,326.72x = 20,409,956.64 × 7,207,922.88
  4. Step 4: Simplify right side
    13,606,326.72x = 147,113,393,445,263.94
  5. Step 5: Solve for x
    x = 147,113,393,445,263.94/13,606,326.72
  6. Step 6: Final answer
    x = 10,812,131.48

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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.