Finding the Fourth Proportional to 1,888,592,221.10, 2,832,888,331.65 and 661,601,240.30
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Solution
The fourth proportional to 1,888,592,221.10, 2,832,888,331.65 and 661,601,240.30 is: 992,401,860.45
Step by Step Solution
- Step 1: Write the proportion equation
1,888,592,221.10 : 2,832,888,331.65 = 661,601,240.30 : x - Step 2: Convert to fraction form
1,888,592,221.10/2,832,888,331.65 = 661,601,240.30/x - Step 3: Cross multiply
1,888,592,221.10x = 2,832,888,331.65 × 661,601,240.30 - Step 4: Simplify right side
1,888,592,221.10x = 1,874,242,433,851,037,696 - Step 5: Solve for x
x = 1,874,242,433,851,037,696/1,888,592,221.10 - Step 6: Final answer
x = 992,401,860.45
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Half scale
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Double scale
Find fourth proportional to 1,888,592,222.10, 2,832,888,333.15 and 661,601,241.30
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.