Home / 21,220,535.72-31,830,799.48-9,082,128.04

Finding the Fourth Proportional to 21,220,535.72, 31,830,799.48 and 9,082,128.04

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Solution

The fourth proportional to 21,220,535.72, 31,830,799.48 and 9,082,128.04 is: 13,623,190.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,220,535.72 : 31,830,799.48 = 9,082,128.04 : x
  2. Step 2: Convert to fraction form
    21,220,535.72/31,830,799.48 = 9,082,128.04/x
  3. Step 3: Cross multiply
    21,220,535.72x = 31,830,799.48 × 9,082,128.04
  4. Step 4: Simplify right side
    21,220,535.72x = 289,091,396,441,730.06
  5. Step 5: Solve for x
    x = 289,091,396,441,730.06/21,220,535.72
  6. Step 6: Final answer
    x = 13,623,190.30

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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.