Home / 159,782,928,012.60-239,644,427,603.84-80,173,102,429.31

Finding the Fourth Proportional to 159,782,928,012.60, 239,644,427,603.84 and 80,173,102,429.31

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Solution

The fourth proportional to 159,782,928,012.60, 239,644,427,603.84 and 80,173,102,429.31 is: 120,244,618,620.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,782,928,012.60 : 239,644,427,603.84 = 80,173,102,429.31 : x
  2. Step 2: Convert to fraction form
    159,782,928,012.60/239,644,427,603.84 = 80,173,102,429.31/x
  3. Step 3: Cross multiply
    159,782,928,012.60x = 239,644,427,603.84 × 80,173,102,429.31
  4. Step 4: Simplify right side
    159,782,928,012.60x = 19,213,037,240,896,985,235,456
  5. Step 5: Solve for x
    x = 19,213,037,240,896,985,235,456/159,782,928,012.60
  6. Step 6: Final answer
    x = 120,244,618,620.22

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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.