Home / 21,209,020.63-31,769,391.27-13,494,451.03

Finding the Fourth Proportional to 21,209,020.63, 31,769,391.27 and 13,494,451.03

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Solution

The fourth proportional to 21,209,020.63, 31,769,391.27 and 13,494,451.03 is: 20,213,592.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,209,020.63 : 31,769,391.27 = 13,494,451.03 : x
  2. Step 2: Convert to fraction form
    21,209,020.63/31,769,391.27 = 13,494,451.03/x
  3. Step 3: Cross multiply
    21,209,020.63x = 31,769,391.27 × 13,494,451.03
  4. Step 4: Simplify right side
    21,209,020.63x = 428,710,494,745,924.50
  5. Step 5: Solve for x
    x = 428,710,494,745,924.50/21,209,020.63
  6. Step 6: Final answer
    x = 20,213,592.24

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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.