Finding the Fourth Proportional to 160,386,531.84, 221,333,629.14 and 87,047,673.84
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Solution
The fourth proportional to 160,386,531.84, 221,333,629.14 and 87,047,673.84 is: 120,125,906.70
Step by Step Solution
- Step 1: Write the proportion equation
160,386,531.84 : 221,333,629.14 = 87,047,673.84 : x - Step 2: Convert to fraction form
160,386,531.84/221,333,629.14 = 87,047,673.84/x - Step 3: Cross multiply
160,386,531.84x = 221,333,629.14 × 87,047,673.84 - Step 4: Simplify right side
160,386,531.84x = 19,266,577,559,202,240 - Step 5: Solve for x
x = 19,266,577,559,202,240/160,386,531.84 - Step 6: Final answer
x = 120,125,906.70
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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.