Finding the Fourth Proportional to 189,550,934.12, 261,575,271.41 and 105,919,751.99
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Solution
The fourth proportional to 189,550,934.12, 261,575,271.41 and 105,919,751.99 is: 146,166,453.90
Step by Step Solution
- Step 1: Write the proportion equation
189,550,934.12 : 261,575,271.41 = 105,919,751.99 : x - Step 2: Convert to fraction form
189,550,934.12/261,575,271.41 = 105,919,751.99/x - Step 3: Cross multiply
189,550,934.12x = 261,575,271.41 × 105,919,751.99 - Step 4: Simplify right side
189,550,934.12x = 27,705,987,872,626,664 - Step 5: Solve for x
x = 27,705,987,872,626,664/189,550,934.12 - Step 6: Final answer
x = 146,166,453.90
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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.