Finding the Fourth Proportional to 19,423,552.80, 29,135,329.20 and 6,642,919.20
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Solution
The fourth proportional to 19,423,552.80, 29,135,329.20 and 6,642,919.20 is: 9,964,378.80
Step by Step Solution
- Step 1: Write the proportion equation
19,423,552.80 : 29,135,329.20 = 6,642,919.20 : x - Step 2: Convert to fraction form
19,423,552.80/29,135,329.20 = 6,642,919.20/x - Step 3: Cross multiply
19,423,552.80x = 29,135,329.20 × 6,642,919.20 - Step 4: Simplify right side
19,423,552.80x = 193,543,637,741,000.62 - Step 5: Solve for x
x = 193,543,637,741,000.62/19,423,552.80 - Step 6: Final answer
x = 9,964,378.80
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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.