Home / 21,150,751.80-31,734,422.10-7,688,940.60

Finding the Fourth Proportional to 21,150,751.80, 31,734,422.10 and 7,688,940.60

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Solution

The fourth proportional to 21,150,751.80, 31,734,422.10 and 7,688,940.60 is: 11,536,426.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,150,751.80 : 31,734,422.10 = 7,688,940.60 : x
  2. Step 2: Convert to fraction form
    21,150,751.80/31,734,422.10 = 7,688,940.60/x
  3. Step 3: Cross multiply
    21,150,751.80x = 31,734,422.10 × 7,688,940.60
  4. Step 4: Simplify right side
    21,150,751.80x = 244,004,086,502,227.25
  5. Step 5: Solve for x
    x = 244,004,086,502,227.25/21,150,751.80
  6. Step 6: Final answer
    x = 11,536,426.17

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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.