Home / 12,928,621.95-17,841,635.78-7,127,611.29

Finding the Fourth Proportional to 12,928,621.95, 17,841,635.78 and 7,127,611.29

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Solution

The fourth proportional to 12,928,621.95, 17,841,635.78 and 7,127,611.29 is: 9,836,179.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,928,621.95 : 17,841,635.78 = 7,127,611.29 : x
  2. Step 2: Convert to fraction form
    12,928,621.95/17,841,635.78 = 7,127,611.29/x
  3. Step 3: Cross multiply
    12,928,621.95x = 17,841,635.78 × 7,127,611.29
  4. Step 4: Simplify right side
    12,928,621.95x = 127,168,244,581,957.89
  5. Step 5: Solve for x
    x = 127,168,244,581,957.89/12,928,621.95
  6. Step 6: Final answer
    x = 9,836,179.38

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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.