Finding the Fourth Proportional to 19,680,544.80, 29,520,817.20 and 14,641,696.80
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Solution
The fourth proportional to 19,680,544.80, 29,520,817.20 and 14,641,696.80 is: 21,962,545.20
Step by Step Solution
- Step 1: Write the proportion equation
19,680,544.80 : 29,520,817.20 = 14,641,696.80 : x - Step 2: Convert to fraction form
19,680,544.80/29,520,817.20 = 14,641,696.80/x - Step 3: Cross multiply
19,680,544.80x = 29,520,817.20 × 14,641,696.80 - Step 4: Simplify right side
19,680,544.80x = 432,234,854,730,625 - Step 5: Solve for x
x = 432,234,854,730,625/19,680,544.80 - Step 6: Final answer
x = 21,962,545.20
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1.5x scale
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.