Finding the Fourth Proportional to 66,142,442.21, 99,207,248.12 and 20,084,710.04
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Solution
The fourth proportional to 66,142,442.21, 99,207,248.12 and 20,084,710.04 is: 30,125,117.02
Step by Step Solution
- Step 1: Write the proportion equation
66,142,442.21 : 99,207,248.12 = 20,084,710.04 : x - Step 2: Convert to fraction form
66,142,442.21/99,207,248.12 = 20,084,710.04/x - Step 3: Cross multiply
66,142,442.21x = 99,207,248.12 × 20,084,710.04 - Step 4: Simplify right side
66,142,442.21x = 1,992,548,811,760,075.25 - Step 5: Solve for x
x = 1,992,548,811,760,075.25/66,142,442.21 - Step 6: Final answer
x = 30,125,117.02
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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.