Finding the Fourth Proportional to 6,691,915.86, 10,038,090.36 and 3,185,711.99
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Solution
The fourth proportional to 6,691,915.86, 10,038,090.36 and 3,185,711.99 is: 4,778,671.08
Step by Step Solution
- Step 1: Write the proportion equation
6,691,915.86 : 10,038,090.36 = 3,185,711.99 : x - Step 2: Convert to fraction form
6,691,915.86/10,038,090.36 = 3,185,711.99/x - Step 3: Cross multiply
6,691,915.86x = 10,038,090.36 × 3,185,711.99 - Step 4: Simplify right side
6,691,915.86x = 31,978,464,804,007.80 - Step 5: Solve for x
x = 31,978,464,804,007.80/6,691,915.86 - Step 6: Final answer
x = 4,778,671.08
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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.