Home / 21,049,157.63-29,047,837.73-11,391,365.63

Finding the Fourth Proportional to 21,049,157.63, 29,047,837.73 and 11,391,365.63

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Solution

The fourth proportional to 21,049,157.63, 29,047,837.73 and 11,391,365.63 is: 15,720,084.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,049,157.63 : 29,047,837.73 = 11,391,365.63 : x
  2. Step 2: Convert to fraction form
    21,049,157.63/29,047,837.73 = 11,391,365.63/x
  3. Step 3: Cross multiply
    21,049,157.63x = 29,047,837.73 × 11,391,365.63
  4. Step 4: Simplify right side
    21,049,157.63x = 330,894,540,141,143.25
  5. Step 5: Solve for x
    x = 330,894,540,141,143.25/21,049,157.63
  6. Step 6: Final answer
    x = 15,720,084.67

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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.