Finding the Fourth Proportional to 21,334,914.70, 29,442,182.40 and 11,545,358.99
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Solution
The fourth proportional to 21,334,914.70, 29,442,182.40 and 11,545,358.99 is: 15,932,595.47
Step by Step Solution
- Step 1: Write the proportion equation
21,334,914.70 : 29,442,182.40 = 11,545,358.99 : x - Step 2: Convert to fraction form
21,334,914.70/29,442,182.40 = 11,545,358.99/x - Step 3: Cross multiply
21,334,914.70x = 29,442,182.40 × 11,545,358.99 - Step 4: Simplify right side
21,334,914.70x = 339,920,565,257,059.75 - Step 5: Solve for x
x = 339,920,565,257,059.75/21,334,914.70 - Step 6: Final answer
x = 15,932,595.47
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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.