Finding the Fourth Proportional to 117,231,552.80, 161,673,679.14 and 73,182,639.02
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Solution
The fourth proportional to 117,231,552.80, 161,673,679.14 and 73,182,639.02 is: 100,925,955.66
Step by Step Solution
- Step 1: Write the proportion equation
117,231,552.80 : 161,673,679.14 = 73,182,639.02 : x - Step 2: Convert to fraction form
117,231,552.80/161,673,679.14 = 73,182,639.02/x - Step 3: Cross multiply
117,231,552.80x = 161,673,679.14 × 73,182,639.02 - Step 4: Simplify right side
117,231,552.80x = 11,831,706,499,537,922 - Step 5: Solve for x
x = 11,831,706,499,537,922/117,231,552.80 - Step 6: Final answer
x = 100,925,955.66
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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.