Home / 590,438,638.89-885,315,313.31-279,543,644.82

Finding the Fourth Proportional to 590,438,638.89, 885,315,313.31 and 279,543,644.82

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Solution

The fourth proportional to 590,438,638.89, 885,315,313.31 and 279,543,644.82 is: 419,153,241.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    590,438,638.89 : 885,315,313.31 = 279,543,644.82 : x
  2. Step 2: Convert to fraction form
    590,438,638.89/885,315,313.31 = 279,543,644.82/x
  3. Step 3: Cross multiply
    590,438,638.89x = 885,315,313.31 × 279,543,644.82
  4. Step 4: Simplify right side
    590,438,638.89x = 247,484,269,496,239,904
  5. Step 5: Solve for x
    x = 247,484,269,496,239,904/590,438,638.89
  6. Step 6: Final answer
    x = 419,153,241.67

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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.