Finding the Fourth Proportional to 19,980,879.84, 29,967,967.44 and 7,199,002.08
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Solution
The fourth proportional to 19,980,879.84, 29,967,967.44 and 7,199,002.08 is: 10,797,295.30
Step by Step Solution
- Step 1: Write the proportion equation
19,980,879.84 : 29,967,967.44 = 7,199,002.08 : x - Step 2: Convert to fraction form
19,980,879.84/29,967,967.44 = 7,199,002.08/x - Step 3: Cross multiply
19,980,879.84x = 29,967,967.44 × 7,199,002.08 - Step 4: Simplify right side
19,980,879.84x = 215,739,459,933,932.28 - Step 5: Solve for x
x = 215,739,459,933,932.28/19,980,879.84 - Step 6: Final answer
x = 10,797,295.30
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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.