Home / 21,603,988.80-29,812,914.72-11,945,866.56

Finding the Fourth Proportional to 21,603,988.80, 29,812,914.72 and 11,945,866.56

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Solution

The fourth proportional to 21,603,988.80, 29,812,914.72 and 11,945,866.56 is: 16,484,969.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,603,988.80 : 29,812,914.72 = 11,945,866.56 : x
  2. Step 2: Convert to fraction form
    21,603,988.80/29,812,914.72 = 11,945,866.56/x
  3. Step 3: Cross multiply
    21,603,988.80x = 29,812,914.72 × 11,945,866.56
  4. Step 4: Simplify right side
    21,603,988.80x = 356,141,101,009,779.75
  5. Step 5: Solve for x
    x = 356,141,101,009,779.75/21,603,988.80
  6. Step 6: Final answer
    x = 16,484,969.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.