Home / 38,143,121.08-52,638,164.96-20,739,583.80

Finding the Fourth Proportional to 38,143,121.08, 52,638,164.96 and 20,739,583.80

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Solution

The fourth proportional to 38,143,121.08, 52,638,164.96 and 20,739,583.80 is: 28,620,983.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,143,121.08 : 52,638,164.96 = 20,739,583.80 : x
  2. Step 2: Convert to fraction form
    38,143,121.08/52,638,164.96 = 20,739,583.80/x
  3. Step 3: Cross multiply
    38,143,121.08x = 52,638,164.96 × 20,739,583.80
  4. Step 4: Simplify right side
    38,143,121.08x = 1,091,693,633,266,143.75
  5. Step 5: Solve for x
    x = 1,091,693,633,266,143.75/38,143,121.08
  6. Step 6: Final answer
    x = 28,620,983.35

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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.