Home / 21,428,159.12-29,571,074.42-11,638,794.77

Finding the Fourth Proportional to 21,428,159.12, 29,571,074.42 and 11,638,794.77

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Solution

The fourth proportional to 21,428,159.12, 29,571,074.42 and 11,638,794.77 is: 16,061,653.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,428,159.12 : 29,571,074.42 = 11,638,794.77 : x
  2. Step 2: Convert to fraction form
    21,428,159.12/29,571,074.42 = 11,638,794.77/x
  3. Step 3: Cross multiply
    21,428,159.12x = 29,571,074.42 × 11,638,794.77
  4. Step 4: Simplify right side
    21,428,159.12x = 344,171,666,096,727.44
  5. Step 5: Solve for x
    x = 344,171,666,096,727.44/21,428,159.12
  6. Step 6: Final answer
    x = 16,061,653.46

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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.