Finding the Fourth Proportional to 791,558,729.49, 1,091,897,208.81 and 493,683,825.09
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Solution
The fourth proportional to 791,558,729.49, 1,091,897,208.81 and 493,683,825.09 is: 681,000,626.44
Step by Step Solution
- Step 1: Write the proportion equation
791,558,729.49 : 1,091,897,208.81 = 493,683,825.09 : x - Step 2: Convert to fraction form
791,558,729.49/1,091,897,208.81 = 493,683,825.09/x - Step 3: Cross multiply
791,558,729.49x = 1,091,897,208.81 × 493,683,825.09 - Step 4: Simplify right side
791,558,729.49x = 539,051,990,650,415,168 - Step 5: Solve for x
x = 539,051,990,650,415,168/791,558,729.49 - Step 6: Final answer
x = 681,000,626.44
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1.5x scale
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.