Finding the Fourth Proportional to 32,178,630.80, 48,267,946.20 and 28,651,437.20
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Solution
The fourth proportional to 32,178,630.80, 48,267,946.20 and 28,651,437.20 is: 42,977,155.80
Step by Step Solution
- Step 1: Write the proportion equation
32,178,630.80 : 48,267,946.20 = 28,651,437.20 : x - Step 2: Convert to fraction form
32,178,630.80/48,267,946.20 = 28,651,437.20/x - Step 3: Cross multiply
32,178,630.80x = 48,267,946.20 × 28,651,437.20 - Step 4: Simplify right side
32,178,630.80x = 1,382,946,029,322,278.75 - Step 5: Solve for x
x = 1,382,946,029,322,278.75/32,178,630.80 - Step 6: Final answer
x = 42,977,155.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.