Home / 805,985,190.40-1,209,064,183.44-223,721,904.64

Finding the Fourth Proportional to 805,985,190.40, 1,209,064,183.44 and 223,721,904.64

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Solution

The fourth proportional to 805,985,190.40, 1,209,064,183.44 and 223,721,904.64 is: 335,606,838.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,985,190.40 : 1,209,064,183.44 = 223,721,904.64 : x
  2. Step 2: Convert to fraction form
    805,985,190.40/1,209,064,183.44 = 223,721,904.64/x
  3. Step 3: Cross multiply
    805,985,190.40x = 1,209,064,183.44 × 223,721,904.64
  4. Step 4: Simplify right side
    805,985,190.40x = 270,494,141,951,203,136
  5. Step 5: Solve for x
    x = 270,494,141,951,203,136/805,985,190.40
  6. Step 6: Final answer
    x = 335,606,838.90

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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.