Finding the Fourth Proportional to 1,389,488,296.80, 2,084,232,445.20 and 1,195,778,052.30
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Solution
The fourth proportional to 1,389,488,296.80, 2,084,232,445.20 and 1,195,778,052.30 is: 1,793,667,078.45
Step by Step Solution
- Step 1: Write the proportion equation
1,389,488,296.80 : 2,084,232,445.20 = 1,195,778,052.30 : x - Step 2: Convert to fraction form
1,389,488,296.80/2,084,232,445.20 = 1,195,778,052.30/x - Step 3: Cross multiply
1,389,488,296.80x = 2,084,232,445.20 × 1,195,778,052.30 - Step 4: Simplify right side
1,389,488,296.80x = 2,492,279,413,861,722,624 - Step 5: Solve for x
x = 2,492,279,413,861,722,624/1,389,488,296.80 - Step 6: Final answer
x = 1,793,667,078.45
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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.