Home / 128,038,231.62-192,057,851.75-30,993,783.41

Finding the Fourth Proportional to 128,038,231.62, 192,057,851.75 and 30,993,783.41

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Solution

The fourth proportional to 128,038,231.62, 192,057,851.75 and 30,993,783.41 is: 46,490,797.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,038,231.62 : 192,057,851.75 = 30,993,783.41 : x
  2. Step 2: Convert to fraction form
    128,038,231.62/192,057,851.75 = 30,993,783.41/x
  3. Step 3: Cross multiply
    128,038,231.62x = 192,057,851.75 × 30,993,783.41
  4. Step 4: Simplify right side
    128,038,231.62x = 5,952,599,459,329,389
  5. Step 5: Solve for x
    x = 5,952,599,459,329,389/128,038,231.62
  6. Step 6: Final answer
    x = 46,490,797.19

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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.