Finding the Fourth Proportional to 394,388,291.25, 544,271,867.17 and 218,173,248.50
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Solution
The fourth proportional to 394,388,291.25, 544,271,867.17 and 218,173,248.50 is: 301,087,947.99
Step by Step Solution
- Step 1: Write the proportion equation
394,388,291.25 : 544,271,867.17 = 218,173,248.50 : x - Step 2: Convert to fraction form
394,388,291.25/544,271,867.17 = 218,173,248.50/x - Step 3: Cross multiply
394,388,291.25x = 544,271,867.17 × 218,173,248.50 - Step 4: Simplify right side
394,388,291.25x = 118,745,561,324,372,624 - Step 5: Solve for x
x = 118,745,561,324,372,624/394,388,291.25 - Step 6: Final answer
x = 301,087,947.99
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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.