Finding the Fourth Proportional to 971,112,134.70, 1,456,668,202.05 and 954,987,821.10
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Solution
The fourth proportional to 971,112,134.70, 1,456,668,202.05 and 954,987,821.10 is: 1,432,481,731.65
Step by Step Solution
- Step 1: Write the proportion equation
971,112,134.70 : 1,456,668,202.05 = 954,987,821.10 : x - Step 2: Convert to fraction form
971,112,134.70/1,456,668,202.05 = 954,987,821.10/x - Step 3: Cross multiply
971,112,134.70x = 1,456,668,202.05 × 954,987,821.10 - Step 4: Simplify right side
971,112,134.70x = 1,391,100,392,341,383,936 - Step 5: Solve for x
x = 1,391,100,392,341,383,936/971,112,134.70 - Step 6: Final answer
x = 1,432,481,731.65
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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.