Finding the Fourth Proportional to 208,867,764.12, 288,245,293.38 and 125,249,508.57
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Solution
The fourth proportional to 208,867,764.12, 288,245,293.38 and 125,249,508.57 is: 172,848,986.51
Step by Step Solution
- Step 1: Write the proportion equation
208,867,764.12 : 288,245,293.38 = 125,249,508.57 : x - Step 2: Convert to fraction form
208,867,764.12/288,245,293.38 = 125,249,508.57/x - Step 3: Cross multiply
208,867,764.12x = 288,245,293.38 × 125,249,508.57 - Step 4: Simplify right side
208,867,764.12x = 36,102,581,343,460,472 - Step 5: Solve for x
x = 36,102,581,343,460,472/208,867,764.12 - Step 6: Final answer
x = 172,848,986.51
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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.