Home / 239,683,646.54-359,629,043.72-128,889,819.86

Finding the Fourth Proportional to 239,683,646.54, 359,629,043.72 and 128,889,819.86

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Solution

The fourth proportional to 239,683,646.54, 359,629,043.72 and 128,889,819.86 is: 193,390,426.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,683,646.54 : 359,629,043.72 = 128,889,819.86 : x
  2. Step 2: Convert to fraction form
    239,683,646.54/359,629,043.72 = 128,889,819.86/x
  3. Step 3: Cross multiply
    239,683,646.54x = 359,629,043.72 × 128,889,819.86
  4. Step 4: Simplify right side
    239,683,646.54x = 46,352,522,659,052,272
  5. Step 5: Solve for x
    x = 46,352,522,659,052,272/239,683,646.54
  6. Step 6: Final answer
    x = 193,390,426.62

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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.