Finding the Fourth Proportional to 99,642,635.20, 149,463,952.80 and 88,893,092.80
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Solution
The fourth proportional to 99,642,635.20, 149,463,952.80 and 88,893,092.80 is: 133,339,639.20
Step by Step Solution
- Step 1: Write the proportion equation
99,642,635.20 : 149,463,952.80 = 88,893,092.80 : x - Step 2: Convert to fraction form
99,642,635.20/149,463,952.80 = 88,893,092.80/x - Step 3: Cross multiply
99,642,635.20x = 149,463,952.80 × 88,893,092.80 - Step 4: Simplify right side
99,642,635.20x = 13,286,313,026,505,220 - Step 5: Solve for x
x = 13,286,313,026,505,220/99,642,635.20 - Step 6: Final answer
x = 133,339,639.20
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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.