Home / 21,790,548.47-30,069,986.45-12,491,452.01

Finding the Fourth Proportional to 21,790,548.47, 30,069,986.45 and 12,491,452.01

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Solution

The fourth proportional to 21,790,548.47, 30,069,986.45 and 12,491,452.01 is: 17,237,647.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,790,548.47 : 30,069,986.45 = 12,491,452.01 : x
  2. Step 2: Convert to fraction form
    21,790,548.47/30,069,986.45 = 12,491,452.01/x
  3. Step 3: Cross multiply
    21,790,548.47x = 30,069,986.45 × 12,491,452.01
  4. Step 4: Simplify right side
    21,790,548.47x = 375,617,792,468,718.12
  5. Step 5: Solve for x
    x = 375,617,792,468,718.12/21,790,548.47
  6. Step 6: Final answer
    x = 17,237,647.46

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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.