Home / 13,588,238.61-18,745,590.78-8,078,487.39

Finding the Fourth Proportional to 13,588,238.61, 18,745,590.78 and 8,078,487.39

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Solution

The fourth proportional to 13,588,238.61, 18,745,590.78 and 8,078,487.39 is: 11,144,639.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,588,238.61 : 18,745,590.78 = 8,078,487.39 : x
  2. Step 2: Convert to fraction form
    13,588,238.61/18,745,590.78 = 8,078,487.39/x
  3. Step 3: Cross multiply
    13,588,238.61x = 18,745,590.78 × 8,078,487.39
  4. Step 4: Simplify right side
    13,588,238.61x = 151,436,018,734,330.28
  5. Step 5: Solve for x
    x = 151,436,018,734,330.28/13,588,238.61
  6. Step 6: Final answer
    x = 11,144,639.35

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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.