Finding the Fourth Proportional to 75,549,459.70, 113,324,189.55 and 73,869,843.70
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Solution
The fourth proportional to 75,549,459.70, 113,324,189.55 and 73,869,843.70 is: 110,804,765.55
Step by Step Solution
- Step 1: Write the proportion equation
75,549,459.70 : 113,324,189.55 = 73,869,843.70 : x - Step 2: Convert to fraction form
75,549,459.70/113,324,189.55 = 73,869,843.70/x - Step 3: Cross multiply
75,549,459.70x = 113,324,189.55 × 73,869,843.70 - Step 4: Simplify right side
75,549,459.70x = 8,371,240,169,487,673 - Step 5: Solve for x
x = 8,371,240,169,487,673/75,549,459.70 - Step 6: Final answer
x = 110,804,765.55
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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.