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Finding the Fourth Proportional to 15,797,338.84, 21,800,357.28 and 8,828,016.40

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Solution

The fourth proportional to 15,797,338.84, 21,800,357.28 and 8,828,016.40 is: 12,182,679.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,797,338.84 : 21,800,357.28 = 8,828,016.40 : x
  2. Step 2: Convert to fraction form
    15,797,338.84/21,800,357.28 = 8,828,016.40/x
  3. Step 3: Cross multiply
    15,797,338.84x = 21,800,357.28 × 8,828,016.40
  4. Step 4: Simplify right side
    15,797,338.84x = 192,453,911,593,699.41
  5. Step 5: Solve for x
    x = 192,453,911,593,699.41/15,797,338.84
  6. Step 6: Final answer
    x = 12,182,679.22

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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.