Home / 21,422,605.68-29,552,264.36-13,679,506.80

Finding the Fourth Proportional to 21,422,605.68, 29,552,264.36 and 13,679,506.80

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Solution

The fourth proportional to 21,422,605.68, 29,552,264.36 and 13,679,506.80 is: 18,870,739.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,422,605.68 : 29,552,264.36 = 13,679,506.80 : x
  2. Step 2: Convert to fraction form
    21,422,605.68/29,552,264.36 = 13,679,506.80/x
  3. Step 3: Cross multiply
    21,422,605.68x = 29,552,264.36 × 13,679,506.80
  4. Step 4: Simplify right side
    21,422,605.68x = 404,260,401,268,017.69
  5. Step 5: Solve for x
    x = 404,260,401,268,017.69/21,422,605.68
  6. Step 6: Final answer
    x = 18,870,739.04

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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.