Home / 128,038,655-192,058,474.98-30,994,203.80

Finding the Fourth Proportional to 128,038,655, 192,058,474.98 and 30,994,203.80

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Solution

The fourth proportional to 128,038,655, 192,058,474.98 and 30,994,203.80 is: 46,491,424.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,038,655 : 192,058,474.98 = 30,994,203.80 : x
  2. Step 2: Convert to fraction form
    128,038,655/192,058,474.98 = 30,994,203.80/x
  3. Step 3: Cross multiply
    128,038,655x = 192,058,474.98 × 30,994,203.80
  4. Step 4: Simplify right side
    128,038,655x = 5,952,699,515,047,321
  5. Step 5: Solve for x
    x = 5,952,699,515,047,321/128,038,655
  6. Step 6: Final answer
    x = 46,491,424.91

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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.