Finding the Fourth Proportional to 424,613,512.76, 636,691,945.14 and 249,796,979.96
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Solution
The fourth proportional to 424,613,512.76, 636,691,945.14 and 249,796,979.96 is: 374,561,148.62
Step by Step Solution
- Step 1: Write the proportion equation
424,613,512.76 : 636,691,945.14 = 249,796,979.96 : x - Step 2: Convert to fraction form
424,613,512.76/636,691,945.14 = 249,796,979.96/x - Step 3: Cross multiply
424,613,512.76x = 636,691,945.14 × 249,796,979.96 - Step 4: Simplify right side
424,613,512.76x = 159,043,725,060,830,016 - Step 5: Solve for x
x = 159,043,725,060,830,016/424,613,512.76 - Step 6: Final answer
x = 374,561,148.62
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.