Home / 21,874,459.82-30,144,129.63-15,751,326.38

Finding the Fourth Proportional to 21,874,459.82, 30,144,129.63 and 15,751,326.38

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Solution

The fourth proportional to 21,874,459.82, 30,144,129.63 and 15,751,326.38 is: 21,706,137.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,874,459.82 : 30,144,129.63 = 15,751,326.38 : x
  2. Step 2: Convert to fraction form
    21,874,459.82/30,144,129.63 = 15,751,326.38/x
  3. Step 3: Cross multiply
    21,874,459.82x = 30,144,129.63 × 15,751,326.38
  4. Step 4: Simplify right side
    21,874,459.82x = 474,810,024,243,158.62
  5. Step 5: Solve for x
    x = 474,810,024,243,158.62/21,874,459.82
  6. Step 6: Final answer
    x = 21,706,137.12

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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.