Finding the Fourth Proportional to 66,472,616.74, 91,747,516.62 and 38,979,402.34
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Solution
The fourth proportional to 66,472,616.74, 91,747,516.62 and 38,979,402.34 is: 53,800,550.35
Step by Step Solution
- Step 1: Write the proportion equation
66,472,616.74 : 91,747,516.62 = 38,979,402.34 : x - Step 2: Convert to fraction form
66,472,616.74/91,747,516.62 = 38,979,402.34/x - Step 3: Cross multiply
66,472,616.74x = 91,747,516.62 × 38,979,402.34 - Step 4: Simplify right side
66,472,616.74x = 3,576,263,364,026,817.50 - Step 5: Solve for x
x = 3,576,263,364,026,817.50/66,472,616.74 - Step 6: Final answer
x = 53,800,550.35
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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.