Finding the Fourth Proportional to 18,488,479.24, 27,742,391.07 and 7,566,776.20
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Solution
The fourth proportional to 18,488,479.24, 27,742,391.07 and 7,566,776.20 is: 11,354,122.84
Step by Step Solution
- Step 1: Write the proportion equation
18,488,479.24 : 27,742,391.07 = 7,566,776.20 : x - Step 2: Convert to fraction form
18,488,479.24/27,742,391.07 = 7,566,776.20/x - Step 3: Cross multiply
18,488,479.24x = 27,742,391.07 × 7,566,776.20 - Step 4: Simplify right side
18,488,479.24x = 209,920,464,479,568.53 - Step 5: Solve for x
x = 209,920,464,479,568.53/18,488,479.24 - Step 6: Final answer
x = 11,354,122.84
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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.