Home / 128,038,612-192,058,410.48-30,994,160.80

Finding the Fourth Proportional to 128,038,612, 192,058,410.48 and 30,994,160.80

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Solution

The fourth proportional to 128,038,612, 192,058,410.48 and 30,994,160.80 is: 46,491,360.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,038,612 : 192,058,410.48 = 30,994,160.80 : x
  2. Step 2: Convert to fraction form
    128,038,612/192,058,410.48 = 30,994,160.80/x
  3. Step 3: Cross multiply
    128,038,612x = 192,058,410.48 × 30,994,160.80
  4. Step 4: Simplify right side
    128,038,612x = 5,952,689,257,409,525
  5. Step 5: Solve for x
    x = 5,952,689,257,409,525/128,038,612
  6. Step 6: Final answer
    x = 46,491,360.41

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1.5x scale

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.