Home / 21,404,318.04-29,525,605.79-13,660,632.18

Finding the Fourth Proportional to 21,404,318.04, 29,525,605.79 and 13,660,632.18

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Solution

The fourth proportional to 21,404,318.04, 29,525,605.79 and 13,660,632.18 is: 18,843,788.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,404,318.04 : 29,525,605.79 = 13,660,632.18 : x
  2. Step 2: Convert to fraction form
    21,404,318.04/29,525,605.79 = 13,660,632.18/x
  3. Step 3: Cross multiply
    21,404,318.04x = 29,525,605.79 × 13,660,632.18
  4. Step 4: Simplify right side
    21,404,318.04x = 403,338,440,520,565.12
  5. Step 5: Solve for x
    x = 403,338,440,520,565.12/21,404,318.04
  6. Step 6: Final answer
    x = 18,843,788.42

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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.