Home / 21,220,536.85-31,830,801.17-9,082,129.16

Finding the Fourth Proportional to 21,220,536.85, 31,830,801.17 and 9,082,129.16

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Solution

The fourth proportional to 21,220,536.85, 31,830,801.17 and 9,082,129.16 is: 13,623,191.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,220,536.85 : 31,830,801.17 = 9,082,129.16 : x
  2. Step 2: Convert to fraction form
    21,220,536.85/31,830,801.17 = 9,082,129.16/x
  3. Step 3: Cross multiply
    21,220,536.85x = 31,830,801.17 × 9,082,129.16
  4. Step 4: Simplify right side
    21,220,536.85x = 289,091,447,526,385.44
  5. Step 5: Solve for x
    x = 289,091,447,526,385.44/21,220,536.85
  6. Step 6: Final answer
    x = 13,623,191.99

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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.