Finding the Fourth Proportional to 208,867,766.12, 288,245,296.14 and 125,249,510.58
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Solution
The fourth proportional to 208,867,766.12, 288,245,296.14 and 125,249,510.58 is: 172,848,989.29
Step by Step Solution
- Step 1: Write the proportion equation
208,867,766.12 : 288,245,296.14 = 125,249,510.58 : x - Step 2: Convert to fraction form
208,867,766.12/288,245,296.14 = 125,249,510.58/x - Step 3: Cross multiply
208,867,766.12x = 288,245,296.14 × 125,249,510.58 - Step 4: Simplify right side
208,867,766.12x = 36,102,582,268,522,160 - Step 5: Solve for x
x = 36,102,582,268,522,160/208,867,766.12 - Step 6: Final answer
x = 172,848,989.29
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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.