Finding the Fourth Proportional to 1,423,488,129.80, 2,135,232,194.70 and 850,179,201.80
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Solution
The fourth proportional to 1,423,488,129.80, 2,135,232,194.70 and 850,179,201.80 is: 1,275,268,802.70
Step by Step Solution
- Step 1: Write the proportion equation
1,423,488,129.80 : 2,135,232,194.70 = 850,179,201.80 : x - Step 2: Convert to fraction form
1,423,488,129.80/2,135,232,194.70 = 850,179,201.80/x - Step 3: Cross multiply
1,423,488,129.80x = 2,135,232,194.70 × 850,179,201.80 - Step 4: Simplify right side
1,423,488,129.80x = 1,815,330,002,947,708,160 - Step 5: Solve for x
x = 1,815,330,002,947,708,160/1,423,488,129.80 - Step 6: Final answer
x = 1,275,268,802.70
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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.