Finding the Fourth Proportional to 75,728,471.60, 104,487,491.69 and 45,958,459.82
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Solution
The fourth proportional to 75,728,471.60, 104,487,491.69 and 45,958,459.82 is: 63,411,872.53
Step by Step Solution
- Step 1: Write the proportion equation
75,728,471.60 : 104,487,491.69 = 45,958,459.82 : x - Step 2: Convert to fraction form
75,728,471.60/104,487,491.69 = 45,958,459.82/x - Step 3: Cross multiply
75,728,471.60x = 104,487,491.69 × 45,958,459.82 - Step 4: Simplify right side
75,728,471.60x = 4,802,084,187,775,219 - Step 5: Solve for x
x = 4,802,084,187,775,219/75,728,471.60 - Step 6: Final answer
x = 63,411,872.53
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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.