Home / 20,066,743.80-30,100,115.70-14,020,126.20

Finding the Fourth Proportional to 20,066,743.80, 30,100,115.70 and 14,020,126.20

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Solution

The fourth proportional to 20,066,743.80, 30,100,115.70 and 14,020,126.20 is: 21,030,189.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,066,743.80 : 30,100,115.70 = 14,020,126.20 : x
  2. Step 2: Convert to fraction form
    20,066,743.80/30,100,115.70 = 14,020,126.20/x
  3. Step 3: Cross multiply
    20,066,743.80x = 30,100,115.70 × 14,020,126.20
  4. Step 4: Simplify right side
    20,066,743.80x = 422,007,420,748,601.31
  5. Step 5: Solve for x
    x = 422,007,420,748,601.31/20,066,743.80
  6. Step 6: Final answer
    x = 21,030,189.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.