Finding the Fourth Proportional to 528,696,534.09, 729,620,907.37 and 317,037,824.75
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Solution
The fourth proportional to 528,696,534.09, 729,620,907.37 and 317,037,824.75 is: 437,524,005.64
Step by Step Solution
- Step 1: Write the proportion equation
528,696,534.09 : 729,620,907.37 = 317,037,824.75 : x - Step 2: Convert to fraction form
528,696,534.09/729,620,907.37 = 317,037,824.75/x - Step 3: Cross multiply
528,696,534.09x = 729,620,907.37 × 317,037,824.75 - Step 4: Simplify right side
528,696,534.09x = 231,317,425,363,120,864 - Step 5: Solve for x
x = 231,317,425,363,120,864/528,696,534.09 - Step 6: Final answer
x = 437,524,005.64
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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.