Finding the Fourth Proportional to 891,933,414.06, 1,230,372,164.70 and 828,803,758.98
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Solution
The fourth proportional to 891,933,414.06, 1,230,372,164.70 and 828,803,758.98 is: 1,143,288,343.02
Step by Step Solution
- Step 1: Write the proportion equation
891,933,414.06 : 1,230,372,164.70 = 828,803,758.98 : x - Step 2: Convert to fraction form
891,933,414.06/1,230,372,164.70 = 828,803,758.98/x - Step 3: Cross multiply
891,933,414.06x = 1,230,372,164.70 × 828,803,758.98 - Step 4: Simplify right side
891,933,414.06x = 1,019,737,075,047,719,680 - Step 5: Solve for x
x = 1,019,737,075,047,719,680/891,933,414.06 - Step 6: Final answer
x = 1,143,288,343.02
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.