Finding the Fourth Proportional to 20,776,700.16, 31,163,572.17 and 6,398,268.66
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Solution
The fourth proportional to 20,776,700.16, 31,163,572.17 and 6,398,268.66 is: 9,596,947.81
Step by Step Solution
- Step 1: Write the proportion equation
20,776,700.16 : 31,163,572.17 = 6,398,268.66 : x - Step 2: Convert to fraction form
20,776,700.16/31,163,572.17 = 6,398,268.66/x - Step 3: Cross multiply
20,776,700.16x = 31,163,572.17 × 6,398,268.66 - Step 4: Simplify right side
20,776,700.16x = 199,392,907,148,959.22 - Step 5: Solve for x
x = 199,392,907,148,959.22/20,776,700.16 - Step 6: Final answer
x = 9,596,947.81
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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.