Finding the Fourth Proportional to 689,993,455.24, 952,274,466.66 and 392,707,981
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Solution
The fourth proportional to 689,993,455.24, 952,274,466.66 and 392,707,981 is: 541,984,536.69
Step by Step Solution
- Step 1: Write the proportion equation
689,993,455.24 : 952,274,466.66 = 392,707,981 : x - Step 2: Convert to fraction form
689,993,455.24/952,274,466.66 = 392,707,981/x - Step 3: Cross multiply
689,993,455.24x = 952,274,466.66 × 392,707,981 - Step 4: Simplify right side
689,993,455.24x = 373,965,783,159,900,416 - Step 5: Solve for x
x = 373,965,783,159,900,416/689,993,455.24 - Step 6: Final answer
x = 541,984,536.69
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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.