Home / 21,639,663.81-29,862,743.45-11,850,716.61

Finding the Fourth Proportional to 21,639,663.81, 29,862,743.45 and 11,850,716.61

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Solution

The fourth proportional to 21,639,663.81, 29,862,743.45 and 11,850,716.61 is: 16,353,992.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,639,663.81 : 29,862,743.45 = 11,850,716.61 : x
  2. Step 2: Convert to fraction form
    21,639,663.81/29,862,743.45 = 11,850,716.61/x
  3. Step 3: Cross multiply
    21,639,663.81x = 29,862,743.45 × 11,850,716.61
  4. Step 4: Simplify right side
    21,639,663.81x = 353,894,909,763,830.12
  5. Step 5: Solve for x
    x = 353,894,909,763,830.12/21,639,663.81
  6. Step 6: Final answer
    x = 16,353,992.97

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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.