Finding the Fourth Proportional to 13,288,334.17, 18,337,979.53 and 7,709,902.26
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Solution
The fourth proportional to 13,288,334.17, 18,337,979.53 and 7,709,902.26 is: 10,639,710.59
Step by Step Solution
- Step 1: Write the proportion equation
13,288,334.17 : 18,337,979.53 = 7,709,902.26 : x - Step 2: Convert to fraction form
13,288,334.17/18,337,979.53 = 7,709,902.26/x - Step 3: Cross multiply
13,288,334.17x = 18,337,979.53 × 7,709,902.26 - Step 4: Simplify right side
13,288,334.17x = 141,384,029,822,180.75 - Step 5: Solve for x
x = 141,384,029,822,180.75/13,288,334.17 - Step 6: Final answer
x = 10,639,710.59
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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.