Finding the Fourth Proportional to 4,080,963,078.70, 6,121,444,618.05 and 1,320,871,101.10
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Solution
The fourth proportional to 4,080,963,078.70, 6,121,444,618.05 and 1,320,871,101.10 is: 1,981,306,651.65
Step by Step Solution
- Step 1: Write the proportion equation
4,080,963,078.70 : 6,121,444,618.05 = 1,320,871,101.10 : x - Step 2: Convert to fraction form
4,080,963,078.70/6,121,444,618.05 = 1,320,871,101.10/x - Step 3: Cross multiply
4,080,963,078.70x = 6,121,444,618.05 × 1,320,871,101.10 - Step 4: Simplify right side
4,080,963,078.70x = 8,085,639,292,966,372,352 - Step 5: Solve for x
x = 8,085,639,292,966,372,352/4,080,963,078.70 - Step 6: Final answer
x = 1,981,306,651.65
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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.