Finding the Fourth Proportional to 10,612,234.80, 15,918,352.20 and 7,364,977.20
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Solution
The fourth proportional to 10,612,234.80, 15,918,352.20 and 7,364,977.20 is: 11,047,465.80
Step by Step Solution
- Step 1: Write the proportion equation
10,612,234.80 : 15,918,352.20 = 7,364,977.20 : x - Step 2: Convert to fraction form
10,612,234.80/15,918,352.20 = 7,364,977.20/x - Step 3: Cross multiply
10,612,234.80x = 15,918,352.20 × 7,364,977.20 - Step 4: Simplify right side
10,612,234.80x = 117,238,301,014,569.84 - Step 5: Solve for x
x = 117,238,301,014,569.84/10,612,234.80 - Step 6: Final answer
x = 11,047,465.80
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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.