Finding the Fourth Proportional to 971,303,425.80, 1,456,955,138.70 and 661,367,034.60
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Solution
The fourth proportional to 971,303,425.80, 1,456,955,138.70 and 661,367,034.60 is: 992,050,551.90
Step by Step Solution
- Step 1: Write the proportion equation
971,303,425.80 : 1,456,955,138.70 = 661,367,034.60 : x - Step 2: Convert to fraction form
971,303,425.80/1,456,955,138.70 = 661,367,034.60/x - Step 3: Cross multiply
971,303,425.80x = 1,456,955,138.70 × 661,367,034.60 - Step 4: Simplify right side
971,303,425.80x = 963,582,099,627,250,816 - Step 5: Solve for x
x = 963,582,099,627,250,816/971,303,425.80 - Step 6: Final answer
x = 992,050,551.90
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Double scale
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Similar ratio
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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.