Finding the Fourth Proportional to 21,235,825, 31,853,854.14 and 5,279,473
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Solution
The fourth proportional to 21,235,825, 31,853,854.14 and 5,279,473 is: 7,919,238.50
Step by Step Solution
- Step 1: Write the proportion equation
21,235,825 : 31,853,854.14 = 5,279,473 : x - Step 2: Convert to fraction form
21,235,825/31,853,854.14 = 5,279,473/x - Step 3: Cross multiply
21,235,825x = 31,853,854.14 × 5,279,473 - Step 4: Simplify right side
21,235,825x = 168,171,562,878,068.22 - Step 5: Solve for x
x = 168,171,562,878,068.22/21,235,825 - Step 6: Final answer
x = 7,919,238.50
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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.