Home / 66,524,338.88-99,790,085.40-21,089,676.32

Finding the Fourth Proportional to 66,524,338.88, 99,790,085.40 and 21,089,676.32

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Solution

The fourth proportional to 66,524,338.88, 99,790,085.40 and 21,089,676.32 is: 31,635,648.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,524,338.88 : 99,790,085.40 = 21,089,676.32 : x
  2. Step 2: Convert to fraction form
    66,524,338.88/99,790,085.40 = 21,089,676.32/x
  3. Step 3: Cross multiply
    66,524,338.88x = 99,790,085.40 × 21,089,676.32
  4. Step 4: Simplify right side
    66,524,338.88x = 2,104,540,601,031,158
  5. Step 5: Solve for x
    x = 2,104,540,601,031,158/66,524,338.88
  6. Step 6: Final answer
    x = 31,635,648.49

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.