Home / 289,558,845.55-399,588,390.84-215,550,367.03

Finding the Fourth Proportional to 289,558,845.55, 399,588,390.84 and 215,550,367.03

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Solution

The fourth proportional to 289,558,845.55, 399,588,390.84 and 215,550,367.03 is: 297,457,410.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,558,845.55 : 399,588,390.84 = 215,550,367.03 : x
  2. Step 2: Convert to fraction form
    289,558,845.55/399,588,390.84 = 215,550,367.03/x
  3. Step 3: Cross multiply
    289,558,845.55x = 399,588,390.84 × 215,550,367.03
  4. Step 4: Simplify right side
    289,558,845.55x = 86,131,424,306,489,088
  5. Step 5: Solve for x
    x = 86,131,424,306,489,088/289,558,845.55
  6. Step 6: Final answer
    x = 297,457,410.23

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.