Finding the Fourth Proportional to 905,392,901.70, 1,356,703,207.52 and 609,190,894.53
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Solution
The fourth proportional to 905,392,901.70, 1,356,703,207.52 and 609,190,894.53 is: 912,853,678.27
Step by Step Solution
- Step 1: Write the proportion equation
905,392,901.70 : 1,356,703,207.52 = 609,190,894.53 : x - Step 2: Convert to fraction form
905,392,901.70/1,356,703,207.52 = 609,190,894.53/x - Step 3: Cross multiply
905,392,901.70x = 1,356,703,207.52 × 609,190,894.53 - Step 4: Simplify right side
905,392,901.70x = 826,491,240,597,783,040 - Step 5: Solve for x
x = 826,491,240,597,783,040/905,392,901.70 - Step 6: Final answer
x = 912,853,678.27
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.