Home / 15,586,615.45-21,508,893.84-8,616,849.40

Finding the Fourth Proportional to 15,586,615.45, 21,508,893.84 and 8,616,849.40

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Solution

The fourth proportional to 15,586,615.45, 21,508,893.84 and 8,616,849.40 is: 11,890,900.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,586,615.45 : 21,508,893.84 = 8,616,849.40 : x
  2. Step 2: Convert to fraction form
    15,586,615.45/21,508,893.84 = 8,616,849.40/x
  3. Step 3: Cross multiply
    15,586,615.45x = 21,508,893.84 × 8,616,849.40
  4. Step 4: Simplify right side
    15,586,615.45x = 185,338,898,979,867.69
  5. Step 5: Solve for x
    x = 185,338,898,979,867.69/15,586,615.45
  6. Step 6: Final answer
    x = 11,890,900.85

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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.