Finding the Fourth Proportional to 98,631,218.57, 135,999,697.21 and 73,771,736.99
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Solution
The fourth proportional to 98,631,218.57, 135,999,697.21 and 73,771,736.99 is: 101,721,686.48
Step by Step Solution
- Step 1: Write the proportion equation
98,631,218.57 : 135,999,697.21 = 73,771,736.99 : x - Step 2: Convert to fraction form
98,631,218.57/135,999,697.21 = 73,771,736.99/x - Step 3: Cross multiply
98,631,218.57x = 135,999,697.21 × 73,771,736.99 - Step 4: Simplify right side
98,631,218.57x = 10,032,933,892,431,330 - Step 5: Solve for x
x = 10,032,933,892,431,330/98,631,218.57 - Step 6: Final answer
x = 101,721,686.48
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.