Finding the Fourth Proportional to 491,457,894.37, 678,207,862.96 and 268,439,718.13
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Solution
The fourth proportional to 491,457,894.37, 678,207,862.96 and 268,439,718.13 is: 370,444,609.09
Step by Step Solution
- Step 1: Write the proportion equation
491,457,894.37 : 678,207,862.96 = 268,439,718.13 : x - Step 2: Convert to fraction form
491,457,894.37/678,207,862.96 = 268,439,718.13/x - Step 3: Cross multiply
491,457,894.37x = 678,207,862.96 × 268,439,718.13 - Step 4: Simplify right side
491,457,894.37x = 182,057,927,566,532,064 - Step 5: Solve for x
x = 182,057,927,566,532,064/491,457,894.37 - Step 6: Final answer
x = 370,444,609.09
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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.