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Finding the Fourth Proportional to 15,797,339.84, 21,800,358.66 and 8,828,017.40

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Solution

The fourth proportional to 15,797,339.84, 21,800,358.66 and 8,828,017.40 is: 12,182,680.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,797,339.84 : 21,800,358.66 = 8,828,017.40 : x
  2. Step 2: Convert to fraction form
    15,797,339.84/21,800,358.66 = 8,828,017.40/x
  3. Step 3: Cross multiply
    15,797,339.84x = 21,800,358.66 × 8,828,017.40
  4. Step 4: Simplify right side
    15,797,339.84x = 192,453,945,576,720.69
  5. Step 5: Solve for x
    x = 192,453,945,576,720.69/15,797,339.84
  6. Step 6: Final answer
    x = 12,182,680.60

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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.