Home / 172,485,406.80-258,732,257.40-51,320,811.60

Finding the Fourth Proportional to 172,485,406.80, 258,732,257.40 and 51,320,811.60

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Solution

The fourth proportional to 172,485,406.80, 258,732,257.40 and 51,320,811.60 is: 76,982,451.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,485,406.80 : 258,732,257.40 = 51,320,811.60 : x
  2. Step 2: Convert to fraction form
    172,485,406.80/258,732,257.40 = 51,320,811.60/x
  3. Step 3: Cross multiply
    172,485,406.80x = 258,732,257.40 × 51,320,811.60
  4. Step 4: Simplify right side
    172,485,406.80x = 13,278,349,436,868,106
  5. Step 5: Solve for x
    x = 13,278,349,436,868,106/172,485,406.80
  6. Step 6: Final answer
    x = 76,982,451.35

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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.