Home / 38,143,453.86-52,638,624.30-20,739,916.68

Finding the Fourth Proportional to 38,143,453.86, 52,638,624.30 and 20,739,916.68

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Solution

The fourth proportional to 38,143,453.86, 52,638,624.30 and 20,739,916.68 is: 28,621,442.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,143,453.86 : 52,638,624.30 = 20,739,916.68 : x
  2. Step 2: Convert to fraction form
    38,143,453.86/52,638,624.30 = 20,739,916.68/x
  3. Step 3: Cross multiply
    38,143,453.86x = 52,638,624.30 × 20,739,916.68
  4. Step 4: Simplify right side
    38,143,453.86x = 1,091,720,682,131,823.25
  5. Step 5: Solve for x
    x = 1,091,720,682,131,823.25/38,143,453.86
  6. Step 6: Final answer
    x = 28,621,442.78

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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.