Finding the Fourth Proportional to 1,274,156,744.05, 1,911,235,116.08 and 401,025,753.10
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Solution
The fourth proportional to 1,274,156,744.05, 1,911,235,116.08 and 401,025,753.10 is: 601,538,629.65
Step by Step Solution
- Step 1: Write the proportion equation
1,274,156,744.05 : 1,911,235,116.08 = 401,025,753.10 : x - Step 2: Convert to fraction form
1,274,156,744.05/1,911,235,116.08 = 401,025,753.10/x - Step 3: Cross multiply
1,274,156,744.05x = 1,911,235,116.08 × 401,025,753.10 - Step 4: Simplify right side
1,274,156,744.05x = 766,454,501,777,147,904 - Step 5: Solve for x
x = 766,454,501,777,147,904/1,274,156,744.05 - Step 6: Final answer
x = 601,538,629.65
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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.