Home / 12,638,416.23-17,440,975.89-6,837,196.64

Finding the Fourth Proportional to 12,638,416.23, 17,440,975.89 and 6,837,196.64

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Solution

The fourth proportional to 12,638,416.23, 17,440,975.89 and 6,837,196.64 is: 9,435,310.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,638,416.23 : 17,440,975.89 = 6,837,196.64 : x
  2. Step 2: Convert to fraction form
    12,638,416.23/17,440,975.89 = 6,837,196.64/x
  3. Step 3: Cross multiply
    12,638,416.23x = 17,440,975.89 × 6,837,196.64
  4. Step 4: Simplify right side
    12,638,416.23x = 119,247,381,666,224.12
  5. Step 5: Solve for x
    x = 119,247,381,666,224.12/12,638,416.23
  6. Step 6: Final answer
    x = 9,435,310.52

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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.