Home / 12,812,611.56-17,681,405.76-7,011,394.62

Finding the Fourth Proportional to 12,812,611.56, 17,681,405.76 and 7,011,394.62

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Solution

The fourth proportional to 12,812,611.56, 17,681,405.76 and 7,011,394.62 is: 9,675,725.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,812,611.56 : 17,681,405.76 = 7,011,394.62 : x
  2. Step 2: Convert to fraction form
    12,812,611.56/17,681,405.76 = 7,011,394.62/x
  3. Step 3: Cross multiply
    12,812,611.56x = 17,681,405.76 × 7,011,394.62
  4. Step 4: Simplify right side
    12,812,611.56x = 123,971,313,219,701.03
  5. Step 5: Solve for x
    x = 123,971,313,219,701.03/12,812,611.56
  6. Step 6: Final answer
    x = 9,675,725.56

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1.5x scale

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.