Home / 13,344,808.72-18,419,751.20-7,764,368.24

Finding the Fourth Proportional to 13,344,808.72, 18,419,751.20 and 7,764,368.24

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Solution

The fourth proportional to 13,344,808.72, 18,419,751.20 and 7,764,368.24 is: 10,717,106.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,344,808.72 : 18,419,751.20 = 7,764,368.24 : x
  2. Step 2: Convert to fraction form
    13,344,808.72/18,419,751.20 = 7,764,368.24/x
  3. Step 3: Cross multiply
    13,344,808.72x = 18,419,751.20 × 7,764,368.24
  4. Step 4: Simplify right side
    13,344,808.72x = 143,017,731,205,981.88
  5. Step 5: Solve for x
    x = 143,017,731,205,981.88/13,344,808.72
  6. Step 6: Final answer
    x = 10,717,106.12

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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.