Home / 20,817,605.97-28,728,303.19-11,398,992.66

Finding the Fourth Proportional to 20,817,605.97, 28,728,303.19 and 11,398,992.66

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Solution

The fourth proportional to 20,817,605.97, 28,728,303.19 and 11,398,992.66 is: 15,730,613.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,817,605.97 : 28,728,303.19 = 11,398,992.66 : x
  2. Step 2: Convert to fraction form
    20,817,605.97/28,728,303.19 = 11,398,992.66/x
  3. Step 3: Cross multiply
    20,817,605.97x = 28,728,303.19 × 11,398,992.66
  4. Step 4: Simplify right side
    20,817,605.97x = 327,473,717,168,567.12
  5. Step 5: Solve for x
    x = 327,473,717,168,567.12/20,817,605.97
  6. Step 6: Final answer
    x = 15,730,613.68

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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.