Home / 80,055,511,657.36-120,082,747,338.16-20,363,663,942.42

Finding the Fourth Proportional to 80,055,511,657.36, 120,082,747,338.16 and 20,363,663,942.42

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Solution

The fourth proportional to 80,055,511,657.36, 120,082,747,338.16 and 20,363,663,942.42 is: 30,545,363,603.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,055,511,657.36 : 120,082,747,338.16 = 20,363,663,942.42 : x
  2. Step 2: Convert to fraction form
    80,055,511,657.36/120,082,747,338.16 = 20,363,663,942.42/x
  3. Step 3: Cross multiply
    80,055,511,657.36x = 120,082,747,338.16 × 20,363,663,942.42
  4. Step 4: Simplify right side
    80,055,511,657.36x = 2,445,324,712,076,219,777,024
  5. Step 5: Solve for x
    x = 2,445,324,712,076,219,777,024/80,055,511,657.36
  6. Step 6: Final answer
    x = 30,545,363,603.97

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1.5x scale

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.