Finding the Fourth Proportional to 5,419,437.84, 8,129,160.41 and 1,376,228.88
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Solution
The fourth proportional to 5,419,437.84, 8,129,160.41 and 1,376,228.88 is: 2,064,344.25
Step by Step Solution
- Step 1: Write the proportion equation
5,419,437.84 : 8,129,160.41 = 1,376,228.88 : x - Step 2: Convert to fraction form
5,419,437.84/8,129,160.41 = 1,376,228.88/x - Step 3: Cross multiply
5,419,437.84x = 8,129,160.41 × 1,376,228.88 - Step 4: Simplify right side
5,419,437.84x = 11,187,585,319,513.50 - Step 5: Solve for x
x = 11,187,585,319,513.50/5,419,437.84 - Step 6: Final answer
x = 2,064,344.25
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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.