Finding the Fourth Proportional to 86,658,881.88, 129,988,314.93 and 38,136,735.66
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Solution
The fourth proportional to 86,658,881.88, 129,988,314.93 and 38,136,735.66 is: 57,205,100.02
Step by Step Solution
- Step 1: Write the proportion equation
86,658,881.88 : 129,988,314.93 = 38,136,735.66 : x - Step 2: Convert to fraction form
86,658,881.88/129,988,314.93 = 38,136,735.66/x - Step 3: Cross multiply
86,658,881.88x = 129,988,314.93 × 38,136,735.66 - Step 4: Simplify right side
86,658,881.88x = 4,957,330,005,374,241 - Step 5: Solve for x
x = 4,957,330,005,374,241/86,658,881.88 - Step 6: Final answer
x = 57,205,100.02
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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.