Finding the Fourth Proportional to 580,079,371.66, 798,984,622.08 and 445,860,620.03
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Solution
The fourth proportional to 580,079,371.66, 798,984,622.08 and 445,860,620.03 is: 614,115,578.66
Step by Step Solution
- Step 1: Write the proportion equation
580,079,371.66 : 798,984,622.08 = 445,860,620.03 : x - Step 2: Convert to fraction form
580,079,371.66/798,984,622.08 = 445,860,620.03/x - Step 3: Cross multiply
580,079,371.66x = 798,984,622.08 × 445,860,620.03 - Step 4: Simplify right side
580,079,371.66x = 356,235,778,997,037,504 - Step 5: Solve for x
x = 356,235,778,997,037,504/580,079,371.66 - Step 6: Final answer
x = 614,115,578.66
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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.