Finding the Fourth Proportional to 1,651,471,801.20, 2,477,207,701.80 and 560,954,869.20
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Solution
The fourth proportional to 1,651,471,801.20, 2,477,207,701.80 and 560,954,869.20 is: 841,432,303.80
Step by Step Solution
- Step 1: Write the proportion equation
1,651,471,801.20 : 2,477,207,701.80 = 560,954,869.20 : x - Step 2: Convert to fraction form
1,651,471,801.20/2,477,207,701.80 = 560,954,869.20/x - Step 3: Cross multiply
1,651,471,801.20x = 2,477,207,701.80 × 560,954,869.20 - Step 4: Simplify right side
1,651,471,801.20x = 1,389,601,722,344,451,840 - Step 5: Solve for x
x = 1,389,601,722,344,451,840/1,651,471,801.20 - Step 6: Final answer
x = 841,432,303.80
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Double scale
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Similar ratio
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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.