Home / 128,038,229.43-192,057,848.48-30,993,781.23

Finding the Fourth Proportional to 128,038,229.43, 192,057,848.48 and 30,993,781.23

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Solution

The fourth proportional to 128,038,229.43, 192,057,848.48 and 30,993,781.23 is: 46,490,793.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,038,229.43 : 192,057,848.48 = 30,993,781.23 : x
  2. Step 2: Convert to fraction form
    128,038,229.43/192,057,848.48 = 30,993,781.23/x
  3. Step 3: Cross multiply
    128,038,229.43x = 192,057,848.48 × 30,993,781.23
  4. Step 4: Simplify right side
    128,038,229.43x = 5,952,598,939,138,639
  5. Step 5: Solve for x
    x = 5,952,598,939,138,639/128,038,229.43
  6. Step 6: Final answer
    x = 46,490,793.93

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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.