Finding the Fourth Proportional to 74,661,816.20, 103,028,045.09 and 41,620,603.80
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Solution
The fourth proportional to 74,661,816.20, 103,028,045.09 and 41,620,603.80 is: 57,433,500.32
Step by Step Solution
- Step 1: Write the proportion equation
74,661,816.20 : 103,028,045.09 = 41,620,603.80 : x - Step 2: Convert to fraction form
74,661,816.20/103,028,045.09 = 41,620,603.80/x - Step 3: Cross multiply
74,661,816.20x = 103,028,045.09 × 41,620,603.80 - Step 4: Simplify right side
74,661,816.20x = 4,288,089,445,083,476.50 - Step 5: Solve for x
x = 4,288,089,445,083,476.50/74,661,816.20 - Step 6: Final answer
x = 57,433,500.32
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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.