Finding the Fourth Proportional to 288,735,169.60, 433,102,754.40 and 256,990,427.20
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Solution
The fourth proportional to 288,735,169.60, 433,102,754.40 and 256,990,427.20 is: 385,485,640.80
Step by Step Solution
- Step 1: Write the proportion equation
288,735,169.60 : 433,102,754.40 = 256,990,427.20 : x - Step 2: Convert to fraction form
288,735,169.60/433,102,754.40 = 256,990,427.20/x - Step 3: Cross multiply
288,735,169.60x = 433,102,754.40 × 256,990,427.20 - Step 4: Simplify right side
288,735,169.60x = 111,303,261,874,752,672 - Step 5: Solve for x
x = 111,303,261,874,752,672/288,735,169.60 - Step 6: Final answer
x = 385,485,640.80
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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.