Finding the Fourth Proportional to 791,457,873.26, 1,185,976,163.19 and 423,045,257.36
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Solution
The fourth proportional to 791,457,873.26, 1,185,976,163.19 and 423,045,257.36 is: 633,920,778.51
Step by Step Solution
- Step 1: Write the proportion equation
791,457,873.26 : 1,185,976,163.19 = 423,045,257.36 : x - Step 2: Convert to fraction form
791,457,873.26/1,185,976,163.19 = 423,045,257.36/x - Step 3: Cross multiply
791,457,873.26x = 1,185,976,163.19 × 423,045,257.36 - Step 4: Simplify right side
791,457,873.26x = 501,721,591,175,174,336 - Step 5: Solve for x
x = 501,721,591,175,174,336/791,457,873.26 - Step 6: Final answer
x = 633,920,778.51
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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.