Finding the Fourth Proportional to 1,486,869,531.42, 2,230,558,388.26 and 612,993,194.47
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Solution
The fourth proportional to 1,486,869,531.42, 2,230,558,388.26 and 612,993,194.47 is: 919,594,546.11
Step by Step Solution
- Step 1: Write the proportion equation
1,486,869,531.42 : 2,230,558,388.26 = 612,993,194.47 : x - Step 2: Convert to fraction form
1,486,869,531.42/2,230,558,388.26 = 612,993,194.47/x - Step 3: Cross multiply
1,486,869,531.42x = 2,230,558,388.26 × 612,993,194.47 - Step 4: Simplify right side
1,486,869,531.42x = 1,367,317,111,871,352,064 - Step 5: Solve for x
x = 1,367,317,111,871,352,064/1,486,869,531.42 - Step 6: Final answer
x = 919,594,546.11
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.