Home / 21,220,534.46-31,830,797.58-9,082,126.77

Finding the Fourth Proportional to 21,220,534.46, 31,830,797.58 and 9,082,126.77

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Solution

The fourth proportional to 21,220,534.46, 31,830,797.58 and 9,082,126.77 is: 13,623,188.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,220,534.46 : 31,830,797.58 = 9,082,126.77 : x
  2. Step 2: Convert to fraction form
    21,220,534.46/31,830,797.58 = 9,082,126.77/x
  3. Step 3: Cross multiply
    21,220,534.46x = 31,830,797.58 × 9,082,126.77
  4. Step 4: Simplify right side
    21,220,534.46x = 289,091,338,914,028.94
  5. Step 5: Solve for x
    x = 289,091,338,914,028.94/21,220,534.46
  6. Step 6: Final answer
    x = 13,623,188.40

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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.