Finding the Fourth Proportional to 77,986,605.06, 107,624,877.12 and 43,179,295.23
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Solution
The fourth proportional to 77,986,605.06, 107,624,877.12 and 43,179,295.23 is: 59,589,288.95
Step by Step Solution
- Step 1: Write the proportion equation
77,986,605.06 : 107,624,877.12 = 43,179,295.23 : x - Step 2: Convert to fraction form
77,986,605.06/107,624,877.12 = 43,179,295.23/x - Step 3: Cross multiply
77,986,605.06x = 107,624,877.12 × 43,179,295.23 - Step 4: Simplify right side
77,986,605.06x = 4,647,166,343,256,952 - Step 5: Solve for x
x = 4,647,166,343,256,952/77,986,605.06 - Step 6: Final answer
x = 59,589,288.95
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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.