Finding the Fourth Proportional to 644,917,513.74, 967,378,792.73 and 196,225,370.12
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Solution
The fourth proportional to 644,917,513.74, 967,378,792.73 and 196,225,370.12 is: 294,338,822.56
Step by Step Solution
- Step 1: Write the proportion equation
644,917,513.74 : 967,378,792.73 = 196,225,370.12 : x - Step 2: Convert to fraction form
644,917,513.74/967,378,792.73 = 196,225,370.12/x - Step 3: Cross multiply
644,917,513.74x = 967,378,792.73 × 196,225,370.12 - Step 4: Simplify right side
644,917,513.74x = 189,824,261,643,865,024 - Step 5: Solve for x
x = 189,824,261,643,865,024/644,917,513.74 - Step 6: Final answer
x = 294,338,822.56
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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.