Home / 15,297,074.31-21,111,487.47-11,422,869.42

Finding the Fourth Proportional to 15,297,074.31, 21,111,487.47 and 11,422,869.42

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Solution

The fourth proportional to 15,297,074.31, 21,111,487.47 and 11,422,869.42 is: 15,764,698.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,297,074.31 : 21,111,487.47 = 11,422,869.42 : x
  2. Step 2: Convert to fraction form
    15,297,074.31/21,111,487.47 = 11,422,869.42/x
  3. Step 3: Cross multiply
    15,297,074.31x = 21,111,487.47 × 11,422,869.42
  4. Step 4: Simplify right side
    15,297,074.31x = 241,153,764,631,776.16
  5. Step 5: Solve for x
    x = 241,153,764,631,776.16/15,297,074.31
  6. Step 6: Final answer
    x = 15,764,698.51

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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.