Finding the Fourth Proportional to 988,446,233.74, 1,364,076,641.40 and 542,405,695.36
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Solution
The fourth proportional to 988,446,233.74, 1,364,076,641.40 and 542,405,695.36 is: 748,531,294.82
Step by Step Solution
- Step 1: Write the proportion equation
988,446,233.74 : 1,364,076,641.40 = 542,405,695.36 : x - Step 2: Convert to fraction form
988,446,233.74/1,364,076,641.40 = 542,405,695.36/x - Step 3: Cross multiply
988,446,233.74x = 1,364,076,641.40 × 542,405,695.36 - Step 4: Simplify right side
988,446,233.74x = 739,882,939,202,900,480 - Step 5: Solve for x
x = 739,882,939,202,900,480/988,446,233.74 - Step 6: Final answer
x = 748,531,294.82
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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.