Finding the Fourth Proportional to 30,757,746.20, 46,074,617.85 and 19,207,761.80
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Solution
The fourth proportional to 30,757,746.20, 46,074,617.85 and 19,207,761.80 is: 28,772,923.70
Step by Step Solution
- Step 1: Write the proportion equation
30,757,746.20 : 46,074,617.85 = 19,207,761.80 : x - Step 2: Convert to fraction form
30,757,746.20/46,074,617.85 = 19,207,761.80/x - Step 3: Cross multiply
30,757,746.20x = 46,074,617.85 × 19,207,761.80 - Step 4: Simplify right side
30,757,746.20x = 884,990,284,688,828.25 - Step 5: Solve for x
x = 884,990,284,688,828.25/30,757,746.20 - Step 6: Final answer
x = 28,772,923.70
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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.