Finding the Fourth Proportional to 775,743,305.76, 1,070,548,370.64 and 423,341,995.12
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Solution
The fourth proportional to 775,743,305.76, 1,070,548,370.64 and 423,341,995.12 is: 584,224,291.38
Step by Step Solution
- Step 1: Write the proportion equation
775,743,305.76 : 1,070,548,370.64 = 423,341,995.12 : x - Step 2: Convert to fraction form
775,743,305.76/1,070,548,370.64 = 423,341,995.12/x - Step 3: Cross multiply
775,743,305.76x = 1,070,548,370.64 × 423,341,995.12 - Step 4: Simplify right side
775,743,305.76x = 453,208,083,099,202,816 - Step 5: Solve for x
x = 453,208,083,099,202,816/775,743,305.76 - Step 6: Final answer
x = 584,224,291.38
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Double scale
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1.5x scale
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.