Home / 13,718,693.55-18,930,432.72-7,919,343.57

Finding the Fourth Proportional to 13,718,693.55, 18,930,432.72 and 7,919,343.57

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Solution

The fourth proportional to 13,718,693.55, 18,930,432.72 and 7,919,343.57 is: 10,927,906.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,718,693.55 : 18,930,432.72 = 7,919,343.57 : x
  2. Step 2: Convert to fraction form
    13,718,693.55/18,930,432.72 = 7,919,343.57/x
  3. Step 3: Cross multiply
    13,718,693.55x = 18,930,432.72 × 7,919,343.57
  4. Step 4: Simplify right side
    13,718,693.55x = 149,916,600,638,449.59
  5. Step 5: Solve for x
    x = 149,916,600,638,449.59/13,718,693.55
  6. Step 6: Final answer
    x = 10,927,906.52

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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.