Home / 603,682,390.40-905,714,991.36-215,496,901.76

Finding the Fourth Proportional to 603,682,390.40, 905,714,991.36 and 215,496,901.76

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Solution

The fourth proportional to 603,682,390.40, 905,714,991.36 and 215,496,901.76 is: 323,313,678.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,682,390.40 : 905,714,991.36 = 215,496,901.76 : x
  2. Step 2: Convert to fraction form
    603,682,390.40/905,714,991.36 = 215,496,901.76/x
  3. Step 3: Cross multiply
    603,682,390.40x = 905,714,991.36 × 215,496,901.76
  4. Step 4: Simplify right side
    603,682,390.40x = 195,178,774,515,665,152
  5. Step 5: Solve for x
    x = 195,178,774,515,665,152/603,682,390.40
  6. Step 6: Final answer
    x = 323,313,678.88

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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.