Finding the Fourth Proportional to 288,639,763.13, 398,325,994.47 and 169,567,374.44
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Solution
The fourth proportional to 288,639,763.13, 398,325,994.47 and 169,567,374.44 is: 234,004,810.43
Step by Step Solution
- Step 1: Write the proportion equation
288,639,763.13 : 398,325,994.47 = 169,567,374.44 : x - Step 2: Convert to fraction form
288,639,763.13/398,325,994.47 = 169,567,374.44/x - Step 3: Cross multiply
288,639,763.13x = 398,325,994.47 × 169,567,374.44 - Step 4: Simplify right side
288,639,763.13x = 67,543,093,054,475,680 - Step 5: Solve for x
x = 67,543,093,054,475,680/288,639,763.13 - Step 6: Final answer
x = 234,004,810.43
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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.