Finding the Fourth Proportional to 312,685,517.97, 468,723,272.49 and 148,879,261.71
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Solution
The fourth proportional to 312,685,517.97, 468,723,272.49 and 148,879,261.71 is: 223,173,670.49
Step by Step Solution
- Step 1: Write the proportion equation
312,685,517.97 : 468,723,272.49 = 148,879,261.71 : x - Step 2: Convert to fraction form
312,685,517.97/468,723,272.49 = 148,879,261.71/x - Step 3: Cross multiply
312,685,517.97x = 468,723,272.49 × 148,879,261.71 - Step 4: Simplify right side
312,685,517.97x = 69,783,174,754,606,360 - Step 5: Solve for x
x = 69,783,174,754,606,360/312,685,517.97 - Step 6: Final answer
x = 223,173,670.49
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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.