Finding the Fourth Proportional to 66,845,695.20, 100,268,542.80 and 58,342,639.20
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Solution
The fourth proportional to 66,845,695.20, 100,268,542.80 and 58,342,639.20 is: 87,513,958.80
Step by Step Solution
- Step 1: Write the proportion equation
66,845,695.20 : 100,268,542.80 = 58,342,639.20 : x - Step 2: Convert to fraction form
66,845,695.20/100,268,542.80 = 58,342,639.20/x - Step 3: Cross multiply
66,845,695.20x = 100,268,542.80 × 58,342,639.20 - Step 4: Simplify right side
66,845,695.20x = 5,849,931,415,690,158 - Step 5: Solve for x
x = 5,849,931,415,690,158/66,845,695.20 - Step 6: Final answer
x = 87,513,958.80
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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.