Home / 13,978,508.72-19,285,718.19-8,173,180.40

Finding the Fourth Proportional to 13,978,508.72, 19,285,718.19 and 8,173,180.40

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Solution

The fourth proportional to 13,978,508.72, 19,285,718.19 and 8,173,180.40 is: 11,276,285.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,978,508.72 : 19,285,718.19 = 8,173,180.40 : x
  2. Step 2: Convert to fraction form
    13,978,508.72/19,285,718.19 = 8,173,180.40/x
  3. Step 3: Cross multiply
    13,978,508.72x = 19,285,718.19 × 8,173,180.40
  4. Step 4: Simplify right side
    13,978,508.72x = 157,625,653,783,353.47
  5. Step 5: Solve for x
    x = 157,625,653,783,353.47/13,978,508.72
  6. Step 6: Final answer
    x = 11,276,285.40

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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.