Finding the Fourth Proportional to 87,413,868.84, 120,627,977.40 and 48,254,805.12
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Solution
The fourth proportional to 87,413,868.84, 120,627,977.40 and 48,254,805.12 is: 66,589,885.78
Step by Step Solution
- Step 1: Write the proportion equation
87,413,868.84 : 120,627,977.40 = 48,254,805.12 : x - Step 2: Convert to fraction form
87,413,868.84/120,627,977.40 = 48,254,805.12/x - Step 3: Cross multiply
87,413,868.84x = 120,627,977.40 × 48,254,805.12 - Step 4: Simplify right side
87,413,868.84x = 5,820,879,541,456,764 - Step 5: Solve for x
x = 5,820,879,541,456,764/87,413,868.84 - Step 6: Final answer
x = 66,589,885.78
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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.