Finding the Fourth Proportional to 1,185,849,321.31, 1,636,472,218.53 and 657,247,434.14
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Solution
The fourth proportional to 1,185,849,321.31, 1,636,472,218.53 and 657,247,434.14 is: 907,001,545.09
Step by Step Solution
- Step 1: Write the proportion equation
1,185,849,321.31 : 1,636,472,218.53 = 657,247,434.14 : x - Step 2: Convert to fraction form
1,185,849,321.31/1,636,472,218.53 = 657,247,434.14/x - Step 3: Cross multiply
1,185,849,321.31x = 1,636,472,218.53 × 657,247,434.14 - Step 4: Simplify right side
1,185,849,321.31x = 1,075,567,166,676,824,576 - Step 5: Solve for x
x = 1,075,567,166,676,824,576/1,185,849,321.31 - Step 6: Final answer
x = 907,001,545.09
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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.