Finding the Fourth Proportional to 76,465,063.74, 114,733,467.84 and 38,129,567.21
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Solution
The fourth proportional to 76,465,063.74, 114,733,467.84 and 38,129,567.21 is: 57,212,238.62
Step by Step Solution
- Step 1: Write the proportion equation
76,465,063.74 : 114,733,467.84 = 38,129,567.21 : x - Step 2: Convert to fraction form
76,465,063.74/114,733,467.84 = 38,129,567.21/x - Step 3: Cross multiply
76,465,063.74x = 114,733,467.84 × 38,129,567.21 - Step 4: Simplify right side
76,465,063.74x = 4,374,737,472,667,986 - Step 5: Solve for x
x = 4,374,737,472,667,986/76,465,063.74 - Step 6: Final answer
x = 57,212,238.62
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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.