Finding the Fourth Proportional to 3,129,771,946.30, 4,694,657,919.45 and 1,678,583,722.30
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Solution
The fourth proportional to 3,129,771,946.30, 4,694,657,919.45 and 1,678,583,722.30 is: 2,517,875,583.45
Step by Step Solution
- Step 1: Write the proportion equation
3,129,771,946.30 : 4,694,657,919.45 = 1,678,583,722.30 : x - Step 2: Convert to fraction form
3,129,771,946.30/4,694,657,919.45 = 1,678,583,722.30/x - Step 3: Cross multiply
3,129,771,946.30x = 4,694,657,919.45 × 1,678,583,722.30 - Step 4: Simplify right side
3,129,771,946.30x = 7,880,376,365,355,553,792 - Step 5: Solve for x
x = 7,880,376,365,355,553,792/3,129,771,946.30 - Step 6: Final answer
x = 2,517,875,583.45
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.