Finding the Fourth Proportional to 21,580,352.05, 29,780,533.91 and 11,790,585.53
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Solution
The fourth proportional to 21,580,352.05, 29,780,533.91 and 11,790,585.53 is: 16,270,815.77
Step by Step Solution
- Step 1: Write the proportion equation
21,580,352.05 : 29,780,533.91 = 11,790,585.53 : x - Step 2: Convert to fraction form
21,580,352.05/29,780,533.91 = 11,790,585.53/x - Step 3: Cross multiply
21,580,352.05x = 29,780,533.91 × 11,790,585.53 - Step 4: Simplify right side
21,580,352.05x = 351,129,932,354,686.69 - Step 5: Solve for x
x = 351,129,932,354,686.69/21,580,352.05 - Step 6: Final answer
x = 16,270,815.77
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.