Finding the Fourth Proportional to 276,670,920.92, 381,805,211.99 and 157,593,494.84
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Solution
The fourth proportional to 276,670,920.92, 381,805,211.99 and 157,593,494.84 is: 217,478,647.58
Step by Step Solution
- Step 1: Write the proportion equation
276,670,920.92 : 381,805,211.99 = 157,593,494.84 : x - Step 2: Convert to fraction form
276,670,920.92/381,805,211.99 = 157,593,494.84/x - Step 3: Cross multiply
276,670,920.92x = 381,805,211.99 × 157,593,494.84 - Step 4: Simplify right side
276,670,920.92x = 60,170,017,704,116,136 - Step 5: Solve for x
x = 60,170,017,704,116,136/276,670,920.92 - Step 6: Final answer
x = 217,478,647.58
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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.