Finding the Fourth Proportional to 1,327,104,549.20, 1,990,656,823.80 and 746,629,259.60
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Solution
The fourth proportional to 1,327,104,549.20, 1,990,656,823.80 and 746,629,259.60 is: 1,119,943,889.40
Step by Step Solution
- Step 1: Write the proportion equation
1,327,104,549.20 : 1,990,656,823.80 = 746,629,259.60 : x - Step 2: Convert to fraction form
1,327,104,549.20/1,990,656,823.80 = 746,629,259.60/x - Step 3: Cross multiply
1,327,104,549.20x = 1,990,656,823.80 × 746,629,259.60 - Step 4: Simplify right side
1,327,104,549.20x = 1,486,282,630,471,481,600 - Step 5: Solve for x
x = 1,486,282,630,471,481,600/1,327,104,549.20 - Step 6: Final answer
x = 1,119,943,889.40
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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.