Finding the Fourth Proportional to 97,930,728.40, 146,901,622.20 and 29,775,643.60
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Solution
The fourth proportional to 97,930,728.40, 146,901,622.20 and 29,775,643.60 is: 44,665,146.66
Step by Step Solution
- Step 1: Write the proportion equation
97,930,728.40 : 146,901,622.20 = 29,775,643.60 : x - Step 2: Convert to fraction form
97,930,728.40/146,901,622.20 = 29,775,643.60/x - Step 3: Cross multiply
97,930,728.40x = 146,901,622.20 × 29,775,643.60 - Step 4: Simplify right side
97,930,728.40x = 4,374,090,346,889,048 - Step 5: Solve for x
x = 4,374,090,346,889,048/97,930,728.40 - Step 6: Final answer
x = 44,665,146.66
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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.