Finding the Fourth Proportional to 1,888,592,212.60, 2,832,888,318.90 and 661,601,231.80
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Solution
The fourth proportional to 1,888,592,212.60, 2,832,888,318.90 and 661,601,231.80 is: 992,401,847.70
Step by Step Solution
- Step 1: Write the proportion equation
1,888,592,212.60 : 2,832,888,318.90 = 661,601,231.80 : x - Step 2: Convert to fraction form
1,888,592,212.60/2,832,888,318.90 = 661,601,231.80/x - Step 3: Cross multiply
1,888,592,212.60x = 2,832,888,318.90 × 661,601,231.80 - Step 4: Simplify right side
1,888,592,212.60x = 1,874,242,401,336,071,168 - Step 5: Solve for x
x = 1,874,242,401,336,071,168/1,888,592,212.60 - Step 6: Final answer
x = 992,401,847.70
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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.