Finding the Fourth Proportional to 392,577,542.26, 541,755,371.23 and 216,365,117.06
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Solution
The fourth proportional to 392,577,542.26, 541,755,371.23 and 216,365,117.06 is: 298,582,959.28
Step by Step Solution
- Step 1: Write the proportion equation
392,577,542.26 : 541,755,371.23 = 216,365,117.06 : x - Step 2: Convert to fraction form
392,577,542.26/541,755,371.23 = 216,365,117.06/x - Step 3: Cross multiply
392,577,542.26x = 541,755,371.23 × 216,365,117.06 - Step 4: Simplify right side
392,577,542.26x = 117,216,964,314,876,176 - Step 5: Solve for x
x = 117,216,964,314,876,176/392,577,542.26 - Step 6: Final answer
x = 298,582,959.28
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.