Finding the Fourth Proportional to 281,026,220.68, 387,856,750.20 and 161,926,002.42
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Solution
The fourth proportional to 281,026,220.68, 387,856,750.20 and 161,926,002.42 is: 223,481,257.09
Step by Step Solution
- Step 1: Write the proportion equation
281,026,220.68 : 387,856,750.20 = 161,926,002.42 : x - Step 2: Convert to fraction form
281,026,220.68/387,856,750.20 = 161,926,002.42/x - Step 3: Cross multiply
281,026,220.68x = 387,856,750.20 × 161,926,002.42 - Step 4: Simplify right side
281,026,220.68x = 62,804,093,071,498,528 - Step 5: Solve for x
x = 62,804,093,071,498,528/281,026,220.68 - Step 6: Final answer
x = 223,481,257.09
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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.