Finding the Fourth Proportional to 210,699,141.99, 315,419,026.48 and 127,448,953.49
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Solution
The fourth proportional to 210,699,141.99, 315,419,026.48 and 127,448,953.49 is: 190,792,541.70
Step by Step Solution
- Step 1: Write the proportion equation
210,699,141.99 : 315,419,026.48 = 127,448,953.49 : x - Step 2: Convert to fraction form
210,699,141.99/315,419,026.48 = 127,448,953.49/x - Step 3: Cross multiply
210,699,141.99x = 315,419,026.48 × 127,448,953.49 - Step 4: Simplify right side
210,699,141.99x = 40,199,824,833,496,264 - Step 5: Solve for x
x = 40,199,824,833,496,264/210,699,141.99 - Step 6: Final answer
x = 190,792,541.70
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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.