Finding the Fourth Proportional to 450,165,438.61, 675,235,560.79 and 143,475,955.09
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Solution
The fourth proportional to 450,165,438.61, 675,235,560.79 and 143,475,955.09 is: 215,209,917.70
Step by Step Solution
- Step 1: Write the proportion equation
450,165,438.61 : 675,235,560.79 = 143,475,955.09 : x - Step 2: Convert to fraction form
450,165,438.61/675,235,560.79 = 143,475,955.09/x - Step 3: Cross multiply
450,165,438.61x = 675,235,560.79 × 143,475,955.09 - Step 4: Simplify right side
450,165,438.61x = 96,880,066,993,030,240 - Step 5: Solve for x
x = 96,880,066,993,030,240/450,165,438.61 - Step 6: Final answer
x = 215,209,917.70
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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.