Home / 289,092,733,956.87-398,957,540,467.56-158,886,203,780.45

Finding the Fourth Proportional to 289,092,733,956.87, 398,957,540,467.56 and 158,886,203,780.45

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Solution

The fourth proportional to 289,092,733,956.87, 398,957,540,467.56 and 158,886,203,780.45 is: 219,268,219,601.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,092,733,956.87 : 398,957,540,467.56 = 158,886,203,780.45 : x
  2. Step 2: Convert to fraction form
    289,092,733,956.87/398,957,540,467.56 = 158,886,203,780.45/x
  3. Step 3: Cross multiply
    289,092,733,956.87x = 398,957,540,467.56 × 158,886,203,780.45
  4. Step 4: Simplify right side
    289,092,733,956.87x = 63,388,849,074,475,869,667,328
  5. Step 5: Solve for x
    x = 63,388,849,074,475,869,667,328/289,092,733,956.87
  6. Step 6: Final answer
    x = 219,268,219,601.58

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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.