Finding the Fourth Proportional to 36,390,613.70, 50,219,289.70 and 19,870,852.98
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Solution
The fourth proportional to 36,390,613.70, 50,219,289.70 and 19,870,852.98 is: 27,421,909.69
Step by Step Solution
- Step 1: Write the proportion equation
36,390,613.70 : 50,219,289.70 = 19,870,852.98 : x - Step 2: Convert to fraction form
36,390,613.70/50,219,289.70 = 19,870,852.98/x - Step 3: Cross multiply
36,390,613.70x = 50,219,289.70 × 19,870,852.98 - Step 4: Simplify right side
36,390,613.70x = 997,900,122,388,728.38 - Step 5: Solve for x
x = 997,900,122,388,728.38/36,390,613.70 - Step 6: Final answer
x = 27,421,909.69
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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.