Home / 440,167,403.70-660,330,821.70-221,266,855.80

Finding the Fourth Proportional to 440,167,403.70, 660,330,821.70 and 221,266,855.80

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Solution

The fourth proportional to 440,167,403.70, 660,330,821.70 and 221,266,855.80 is: 331,940,356.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,167,403.70 : 660,330,821.70 = 221,266,855.80 : x
  2. Step 2: Convert to fraction form
    440,167,403.70/660,330,821.70 = 221,266,855.80/x
  3. Step 3: Cross multiply
    440,167,403.70x = 660,330,821.70 × 221,266,855.80
  4. Step 4: Simplify right side
    440,167,403.70x = 146,109,324,705,389,440
  5. Step 5: Solve for x
    x = 146,109,324,705,389,440/440,167,403.70
  6. Step 6: Final answer
    x = 331,940,356.05

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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.