Finding the Fourth Proportional to 1,016,573,331.09, 1,403,427,848.23 and 711,515,877.79
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Solution
The fourth proportional to 1,016,573,331.09, 1,403,427,848.23 and 711,515,877.79 is: 982,281,520.49
Step by Step Solution
- Step 1: Write the proportion equation
1,016,573,331.09 : 1,403,427,848.23 = 711,515,877.79 : x - Step 2: Convert to fraction form
1,016,573,331.09/1,403,427,848.23 = 711,515,877.79/x - Step 3: Cross multiply
1,016,573,331.09x = 1,403,427,848.23 × 711,515,877.79 - Step 4: Simplify right side
1,016,573,331.09x = 998,561,197,348,283,008 - Step 5: Solve for x
x = 998,561,197,348,283,008/1,016,573,331.09 - Step 6: Final answer
x = 982,281,520.49
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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.