Finding the Fourth Proportional to 97,009,974.30, 145,514,961.45 and 66,398,972.70
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Solution
The fourth proportional to 97,009,974.30, 145,514,961.45 and 66,398,972.70 is: 99,598,459.05
Step by Step Solution
- Step 1: Write the proportion equation
97,009,974.30 : 145,514,961.45 = 66,398,972.70 : x - Step 2: Convert to fraction form
97,009,974.30/145,514,961.45 = 66,398,972.70/x - Step 3: Cross multiply
97,009,974.30x = 145,514,961.45 × 66,398,972.70 - Step 4: Simplify right side
97,009,974.30x = 9,662,043,952,760,102 - Step 5: Solve for x
x = 9,662,043,952,760,102/97,009,974.30 - Step 6: Final answer
x = 99,598,459.05
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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.