Home / 15,331,815.88-21,158,155.35-8,362,491.64

Finding the Fourth Proportional to 15,331,815.88, 21,158,155.35 and 8,362,491.64

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Solution

The fourth proportional to 15,331,815.88, 21,158,155.35 and 8,362,491.64 is: 11,540,374.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,331,815.88 : 21,158,155.35 = 8,362,491.64 : x
  2. Step 2: Convert to fraction form
    15,331,815.88/21,158,155.35 = 8,362,491.64/x
  3. Step 3: Cross multiply
    15,331,815.88x = 21,158,155.35 × 8,362,491.64
  4. Step 4: Simplify right side
    15,331,815.88x = 176,934,897,179,300.91
  5. Step 5: Solve for x
    x = 176,934,897,179,300.91/15,331,815.88
  6. Step 6: Final answer
    x = 11,540,374.51

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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.