Home / 128,429,739.40-192,959,181.90-96,579,243.40

Finding the Fourth Proportional to 128,429,739.40, 192,959,181.90 and 96,579,243.40

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Solution

The fourth proportional to 128,429,739.40, 192,959,181.90 and 96,579,243.40 is: 145,105,424.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,429,739.40 : 192,959,181.90 = 96,579,243.40 : x
  2. Step 2: Convert to fraction form
    128,429,739.40/192,959,181.90 = 96,579,243.40/x
  3. Step 3: Cross multiply
    128,429,739.40x = 192,959,181.90 × 96,579,243.40
  4. Step 4: Simplify right side
    128,429,739.40x = 18,635,851,794,984,976
  5. Step 5: Solve for x
    x = 18,635,851,794,984,976/128,429,739.40
  6. Step 6: Final answer
    x = 145,105,424.04

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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.