Finding the Fourth Proportional to 791,558,731.49, 1,091,897,211.57 and 493,683,827.09
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Solution
The fourth proportional to 791,558,731.49, 1,091,897,211.57 and 493,683,827.09 is: 681,000,629.20
Step by Step Solution
- Step 1: Write the proportion equation
791,558,731.49 : 1,091,897,211.57 = 493,683,827.09 : x - Step 2: Convert to fraction form
791,558,731.49/1,091,897,211.57 = 493,683,827.09/x - Step 3: Cross multiply
791,558,731.49x = 1,091,897,211.57 × 493,683,827.09 - Step 4: Simplify right side
791,558,731.49x = 539,051,994,196,776,960 - Step 5: Solve for x
x = 539,051,994,196,776,960/791,558,731.49 - Step 6: Final answer
x = 681,000,629.20
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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.