Finding the Fourth Proportional to 722,302,663, 996,783,532.68 and 392,280,163.96
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Solution
The fourth proportional to 722,302,663, 996,783,532.68 and 392,280,163.96 is: 541,349,807.58
Step by Step Solution
- Step 1: Write the proportion equation
722,302,663 : 996,783,532.68 = 392,280,163.96 : x - Step 2: Convert to fraction form
722,302,663/996,783,532.68 = 392,280,163.96/x - Step 3: Cross multiply
722,302,663x = 996,783,532.68 × 392,280,163.96 - Step 4: Simplify right side
722,302,663x = 391,018,407,632,338,368 - Step 5: Solve for x
x = 391,018,407,632,338,368/722,302,663 - Step 6: Final answer
x = 541,349,807.58
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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.