Home / 21,638,767.47-32,406,632.77-12,521,645.61

Finding the Fourth Proportional to 21,638,767.47, 32,406,632.77 and 12,521,645.61

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Solution

The fourth proportional to 21,638,767.47, 32,406,632.77 and 12,521,645.61 is: 18,752,656.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,638,767.47 : 32,406,632.77 = 12,521,645.61 : x
  2. Step 2: Convert to fraction form
    21,638,767.47/32,406,632.77 = 12,521,645.61/x
  3. Step 3: Cross multiply
    21,638,767.47x = 32,406,632.77 × 12,521,645.61
  4. Step 4: Simplify right side
    21,638,767.47x = 405,784,370,959,352.62
  5. Step 5: Solve for x
    x = 405,784,370,959,352.62/21,638,767.47
  6. Step 6: Final answer
    x = 18,752,656.38

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.