Finding the Fourth Proportional to 1,393,531,304.63, 2,090,492,888.18 and 447,812,331.48
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Solution
The fourth proportional to 1,393,531,304.63, 2,090,492,888.18 and 447,812,331.48 is: 671,781,459.86
Step by Step Solution
- Step 1: Write the proportion equation
1,393,531,304.63 : 2,090,492,888.18 = 447,812,331.48 : x - Step 2: Convert to fraction form
1,393,531,304.63/2,090,492,888.18 = 447,812,331.48/x - Step 3: Cross multiply
1,393,531,304.63x = 2,090,492,888.18 × 447,812,331.48 - Step 4: Simplify right side
1,393,531,304.63x = 936,148,494,190,152,192 - Step 5: Solve for x
x = 936,148,494,190,152,192/1,393,531,304.63 - Step 6: Final answer
x = 671,781,459.86
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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.