Finding the Fourth Proportional to 99,652,081.70, 149,478,122.55 and 91,999,331.30
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Solution
The fourth proportional to 99,652,081.70, 149,478,122.55 and 91,999,331.30 is: 137,998,996.95
Step by Step Solution
- Step 1: Write the proportion equation
99,652,081.70 : 149,478,122.55 = 91,999,331.30 : x - Step 2: Convert to fraction form
99,652,081.70/149,478,122.55 = 91,999,331.30/x - Step 3: Cross multiply
99,652,081.70x = 149,478,122.55 × 91,999,331.30 - Step 4: Simplify right side
99,652,081.70x = 13,751,887,318,579,452 - Step 5: Solve for x
x = 13,751,887,318,579,452/99,652,081.70 - Step 6: Final answer
x = 137,998,996.95
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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.