Finding the Fourth Proportional to 1,261,845,424.79, 1,891,076,246.37 and 982,064,173.79
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Solution
The fourth proportional to 1,261,845,424.79, 1,891,076,246.37 and 982,064,173.79 is: 1,471,779,502.45
Step by Step Solution
- Step 1: Write the proportion equation
1,261,845,424.79 : 1,891,076,246.37 = 982,064,173.79 : x - Step 2: Convert to fraction form
1,261,845,424.79/1,891,076,246.37 = 982,064,173.79/x - Step 3: Cross multiply
1,261,845,424.79x = 1,891,076,246.37 × 982,064,173.79 - Step 4: Simplify right side
1,261,845,424.79x = 1,857,158,231,455,792,896 - Step 5: Solve for x
x = 1,857,158,231,455,792,896/1,261,845,424.79 - Step 6: Final answer
x = 1,471,779,502.45
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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.