Finding the Fourth Proportional to 100,240,847.84, 138,325,408.58 and 55,589,123.26
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Solution
The fourth proportional to 100,240,847.84, 138,325,408.58 and 55,589,123.26 is: 76,709,129.59
Step by Step Solution
- Step 1: Write the proportion equation
100,240,847.84 : 138,325,408.58 = 55,589,123.26 : x - Step 2: Convert to fraction form
100,240,847.84/138,325,408.58 = 55,589,123.26/x - Step 3: Cross multiply
100,240,847.84x = 138,325,408.58 × 55,589,123.26 - Step 4: Simplify right side
100,240,847.84x = 7,689,388,187,543,482 - Step 5: Solve for x
x = 7,689,388,187,543,482/100,240,847.84 - Step 6: Final answer
x = 76,709,129.59
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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.