Finding the Fourth Proportional to 122,314,396.24, 168,791,683.80 and 66,557,915.02
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Solution
The fourth proportional to 122,314,396.24, 168,791,683.80 and 66,557,915.02 is: 91,848,734.83
Step by Step Solution
- Step 1: Write the proportion equation
122,314,396.24 : 168,791,683.80 = 66,557,915.02 : x - Step 2: Convert to fraction form
122,314,396.24/168,791,683.80 = 66,557,915.02/x - Step 3: Cross multiply
122,314,396.24x = 168,791,683.80 × 66,557,915.02 - Step 4: Simplify right side
122,314,396.24x = 11,234,422,546,528,972 - Step 5: Solve for x
x = 11,234,422,546,528,972/122,314,396.24 - Step 6: Final answer
x = 91,848,734.83
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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.