Finding the Fourth Proportional to 160,394,928.68, 221,345,165.40 and 87,056,085.80
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Solution
The fourth proportional to 160,394,928.68, 221,345,165.40 and 87,056,085.80 is: 120,137,487.32
Step by Step Solution
- Step 1: Write the proportion equation
160,394,928.68 : 221,345,165.40 = 87,056,085.80 : x - Step 2: Convert to fraction form
160,394,928.68/221,345,165.40 = 87,056,085.80/x - Step 3: Cross multiply
160,394,928.68x = 221,345,165.40 × 87,056,085.80 - Step 4: Simplify right side
160,394,928.68x = 19,269,443,710,704,492 - Step 5: Solve for x
x = 19,269,443,710,704,492/160,394,928.68 - Step 6: Final answer
x = 120,137,487.32
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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.