Home / 21,397,552.08-29,526,130.71-11,978,858.82

Finding the Fourth Proportional to 21,397,552.08, 29,526,130.71 and 11,978,858.82

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Solution

The fourth proportional to 21,397,552.08, 29,526,130.71 and 11,978,858.82 is: 16,529,430.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,397,552.08 : 29,526,130.71 = 11,978,858.82 : x
  2. Step 2: Convert to fraction form
    21,397,552.08/29,526,130.71 = 11,978,858.82/x
  3. Step 3: Cross multiply
    21,397,552.08x = 29,526,130.71 × 11,978,858.82
  4. Step 4: Simplify right side
    21,397,552.08x = 353,689,351,275,956.38
  5. Step 5: Solve for x
    x = 353,689,351,275,956.38/21,397,552.08
  6. Step 6: Final answer
    x = 16,529,430.56

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1.5x scale

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.