Finding the Fourth Proportional to 528,696,539.38, 729,620,914.68 and 317,037,830.05
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Solution
The fourth proportional to 528,696,539.38, 729,620,914.68 and 317,037,830.05 is: 437,524,012.96
Step by Step Solution
- Step 1: Write the proportion equation
528,696,539.38 : 729,620,914.68 = 317,037,830.05 : x - Step 2: Convert to fraction form
528,696,539.38/729,620,914.68 = 317,037,830.05/x - Step 3: Cross multiply
528,696,539.38x = 729,620,914.68 × 317,037,830.05 - Step 4: Simplify right side
528,696,539.38x = 231,317,431,547,419,328 - Step 5: Solve for x
x = 231,317,431,547,419,328/528,696,539.38 - Step 6: Final answer
x = 437,524,012.96
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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.