Finding the Fourth Proportional to 827,169,467.70, 1,240,754,201.55 and 367,154,138.10
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Solution
The fourth proportional to 827,169,467.70, 1,240,754,201.55 and 367,154,138.10 is: 550,731,207.15
Step by Step Solution
- Step 1: Write the proportion equation
827,169,467.70 : 1,240,754,201.55 = 367,154,138.10 : x - Step 2: Convert to fraction form
827,169,467.70/1,240,754,201.55 = 367,154,138.10/x - Step 3: Cross multiply
827,169,467.70x = 1,240,754,201.55 × 367,154,138.10 - Step 4: Simplify right side
827,169,467.70x = 455,548,039,464,043,968 - Step 5: Solve for x
x = 455,548,039,464,043,968/827,169,467.70 - Step 6: Final answer
x = 550,731,207.15
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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.