Home / 21,778,052.86-30,046,943.20-12,357,285.44

Finding the Fourth Proportional to 21,778,052.86, 30,046,943.20 and 12,357,285.44

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Solution

The fourth proportional to 21,778,052.86, 30,046,943.20 and 12,357,285.44 is: 17,049,212.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,778,052.86 : 30,046,943.20 = 12,357,285.44 : x
  2. Step 2: Convert to fraction form
    21,778,052.86/30,046,943.20 = 12,357,285.44/x
  3. Step 3: Cross multiply
    21,778,052.86x = 30,046,943.20 × 12,357,285.44
  4. Step 4: Simplify right side
    21,778,052.86x = 371,298,653,721,867
  5. Step 5: Solve for x
    x = 371,298,653,721,867/21,778,052.86
  6. Step 6: Final answer
    x = 17,049,212.62

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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.