Finding the Fourth Proportional to 988,446,256.08, 1,364,076,672.29 and 542,405,717.79
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Solution
The fourth proportional to 988,446,256.08, 1,364,076,672.29 and 542,405,717.79 is: 748,531,325.81
Step by Step Solution
- Step 1: Write the proportion equation
988,446,256.08 : 1,364,076,672.29 = 542,405,717.79 : x - Step 2: Convert to fraction form
988,446,256.08/1,364,076,672.29 = 542,405,717.79/x - Step 3: Cross multiply
988,446,256.08x = 1,364,076,672.29 × 542,405,717.79 - Step 4: Simplify right side
988,446,256.08x = 739,882,986,554,051,968 - Step 5: Solve for x
x = 739,882,986,554,051,968/988,446,256.08 - Step 6: Final answer
x = 748,531,325.81
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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.