Finding the Fourth Proportional to 791,558,720.51, 1,091,897,196.39 and 493,683,816.08
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Solution
The fourth proportional to 791,558,720.51, 1,091,897,196.39 and 493,683,816.08 is: 681,000,613.99
Step by Step Solution
- Step 1: Write the proportion equation
791,558,720.51 : 1,091,897,196.39 = 493,683,816.08 : x - Step 2: Convert to fraction form
791,558,720.51/1,091,897,196.39 = 493,683,816.08/x - Step 3: Cross multiply
791,558,720.51x = 1,091,897,196.39 × 493,683,816.08 - Step 4: Simplify right side
791,558,720.51x = 539,051,974,675,408,960 - Step 5: Solve for x
x = 539,051,974,675,408,960/791,558,720.51 - Step 6: Final answer
x = 681,000,613.99
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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.