Finding the Fourth Proportional to 159,831,107.88, 220,566,928.94 and 86,492,249.88
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Solution
The fourth proportional to 159,831,107.88, 220,566,928.94 and 86,492,249.88 is: 119,359,304.87
Step by Step Solution
- Step 1: Write the proportion equation
159,831,107.88 : 220,566,928.94 = 86,492,249.88 : x - Step 2: Convert to fraction form
159,831,107.88/220,566,928.94 = 86,492,249.88/x - Step 3: Cross multiply
159,831,107.88x = 220,566,928.94 × 86,492,249.88 - Step 4: Simplify right side
159,831,107.88x = 19,077,329,933,142,684 - Step 5: Solve for x
x = 19,077,329,933,142,684/159,831,107.88 - Step 6: Final answer
x = 119,359,304.87
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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.