Finding the Fourth Proportional to 183,840,418.99, 253,692,144.21 and 100,206,709.12
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Solution
The fourth proportional to 183,840,418.99, 253,692,144.21 and 100,206,709.12 is: 138,281,097.49
Step by Step Solution
- Step 1: Write the proportion equation
183,840,418.99 : 253,692,144.21 = 100,206,709.12 : x - Step 2: Convert to fraction form
183,840,418.99/253,692,144.21 = 100,206,709.12/x - Step 3: Cross multiply
183,840,418.99x = 253,692,144.21 × 100,206,709.12 - Step 4: Simplify right side
183,840,418.99x = 25,421,654,900,880,564 - Step 5: Solve for x
x = 25,421,654,900,880,564/183,840,418.99 - Step 6: Final answer
x = 138,281,097.49
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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.