Home / 356,040,086.40-534,060,129.60-218,290,579.20

Finding the Fourth Proportional to 356,040,086.40, 534,060,129.60 and 218,290,579.20

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Solution

The fourth proportional to 356,040,086.40, 534,060,129.60 and 218,290,579.20 is: 327,435,868.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,040,086.40 : 534,060,129.60 = 218,290,579.20 : x
  2. Step 2: Convert to fraction form
    356,040,086.40/534,060,129.60 = 218,290,579.20/x
  3. Step 3: Cross multiply
    356,040,086.40x = 534,060,129.60 × 218,290,579.20
  4. Step 4: Simplify right side
    356,040,086.40x = 116,580,295,018,011,056
  5. Step 5: Solve for x
    x = 116,580,295,018,011,056/356,040,086.40
  6. Step 6: Final answer
    x = 327,435,868.80

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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.