Finding the Fourth Proportional to 747,112,354.28, 1,121,348,587.28 and 397,651,810.18
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Solution
The fourth proportional to 747,112,354.28, 1,121,348,587.28 and 397,651,810.18 is: 596,839,676.15
Step by Step Solution
- Step 1: Write the proportion equation
747,112,354.28 : 1,121,348,587.28 = 397,651,810.18 : x - Step 2: Convert to fraction form
747,112,354.28/1,121,348,587.28 = 397,651,810.18/x - Step 3: Cross multiply
747,112,354.28x = 1,121,348,587.28 × 397,651,810.18 - Step 4: Simplify right side
747,112,354.28x = 445,906,295,574,677,696 - Step 5: Solve for x
x = 445,906,295,574,677,696/747,112,354.28 - Step 6: Final answer
x = 596,839,676.15
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.