Finding the Fourth Proportional to 431,587,557.99, 595,645,379.06 and 283,033,658.43
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Solution
The fourth proportional to 431,587,557.99, 595,645,379.06 and 283,033,658.43 is: 390,622,221.70
Step by Step Solution
- Step 1: Write the proportion equation
431,587,557.99 : 595,645,379.06 = 283,033,658.43 : x - Step 2: Convert to fraction form
431,587,557.99/595,645,379.06 = 283,033,658.43/x - Step 3: Cross multiply
431,587,557.99x = 595,645,379.06 × 283,033,658.43 - Step 4: Simplify right side
431,587,557.99x = 168,587,690,760,860,736 - Step 5: Solve for x
x = 168,587,690,760,860,736/431,587,557.99 - Step 6: Final answer
x = 390,622,221.70
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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.