Home / 56,905,609.76-78,529,734.96-30,800,122.64

Finding the Fourth Proportional to 56,905,609.76, 78,529,734.96 and 30,800,122.64

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Solution

The fourth proportional to 56,905,609.76, 78,529,734.96 and 30,800,122.64 is: 42,504,165.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,905,609.76 : 78,529,734.96 = 30,800,122.64 : x
  2. Step 2: Convert to fraction form
    56,905,609.76/78,529,734.96 = 30,800,122.64/x
  3. Step 3: Cross multiply
    56,905,609.76x = 78,529,734.96 × 30,800,122.64
  4. Step 4: Simplify right side
    56,905,609.76x = 2,418,725,467,654,695.50
  5. Step 5: Solve for x
    x = 2,418,725,467,654,695.50/56,905,609.76
  6. Step 6: Final answer
    x = 42,504,165.72

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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.