Home / 56,751,516.08-78,235,126.88-40,425,648.56

Finding the Fourth Proportional to 56,751,516.08, 78,235,126.88 and 40,425,648.56

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Solution

The fourth proportional to 56,751,516.08, 78,235,126.88 and 40,425,648.56 is: 55,729,008.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,751,516.08 : 78,235,126.88 = 40,425,648.56 : x
  2. Step 2: Convert to fraction form
    56,751,516.08/78,235,126.88 = 40,425,648.56/x
  3. Step 3: Cross multiply
    56,751,516.08x = 78,235,126.88 × 40,425,648.56
  4. Step 4: Simplify right side
    56,751,516.08x = 3,162,705,744,297,889.50
  5. Step 5: Solve for x
    x = 3,162,705,744,297,889.50/56,751,516.08
  6. Step 6: Final answer
    x = 55,729,008.89

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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.