Finding the Fourth Proportional to 631,531,691.03, 871,469,491.16 and 367,194,930.53
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Solution
The fourth proportional to 631,531,691.03, 871,469,491.16 and 367,194,930.53 is: 506,703,279.99
Step by Step Solution
- Step 1: Write the proportion equation
631,531,691.03 : 871,469,491.16 = 367,194,930.53 : x - Step 2: Convert to fraction form
631,531,691.03/871,469,491.16 = 367,194,930.53/x - Step 3: Cross multiply
631,531,691.03x = 871,469,491.16 × 367,194,930.53 - Step 4: Simplify right side
631,531,691.03x = 319,999,179,259,317,312 - Step 5: Solve for x
x = 319,999,179,259,317,312/631,531,691.03 - Step 6: Final answer
x = 506,703,279.99
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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.