Finding the Fourth Proportional to 139,390,827.99, 192,556,046.66 and 111,697,503.09
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Solution
The fourth proportional to 139,390,827.99, 192,556,046.66 and 111,697,503.09 is: 154,300,178.33
Step by Step Solution
- Step 1: Write the proportion equation
139,390,827.99 : 192,556,046.66 = 111,697,503.09 : x - Step 2: Convert to fraction form
139,390,827.99/192,556,046.66 = 111,697,503.09/x - Step 3: Cross multiply
139,390,827.99x = 192,556,046.66 × 111,697,503.09 - Step 4: Simplify right side
139,390,827.99x = 21,508,029,616,245,048 - Step 5: Solve for x
x = 21,508,029,616,245,048/139,390,827.99 - Step 6: Final answer
x = 154,300,178.33
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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.