Finding the Fourth Proportional to 19,782,486.80, 29,673,730.20 and 14,680,653.20
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Solution
The fourth proportional to 19,782,486.80, 29,673,730.20 and 14,680,653.20 is: 22,020,979.80
Step by Step Solution
- Step 1: Write the proportion equation
19,782,486.80 : 29,673,730.20 = 14,680,653.20 : x - Step 2: Convert to fraction form
19,782,486.80/29,673,730.20 = 14,680,653.20/x - Step 3: Cross multiply
19,782,486.80x = 29,673,730.20 × 14,680,653.20 - Step 4: Simplify right side
19,782,486.80x = 435,629,742,216,566.62 - Step 5: Solve for x
x = 435,629,742,216,566.62/19,782,486.80 - Step 6: Final answer
x = 22,020,979.80
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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.