Finding the Fourth Proportional to 75,583,720.80, 113,375,581.20 and 30,178,101.60
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Solution
The fourth proportional to 75,583,720.80, 113,375,581.20 and 30,178,101.60 is: 45,267,152.40
Step by Step Solution
- Step 1: Write the proportion equation
75,583,720.80 : 113,375,581.20 = 30,178,101.60 : x - Step 2: Convert to fraction form
75,583,720.80/113,375,581.20 = 30,178,101.60/x - Step 3: Cross multiply
75,583,720.80x = 113,375,581.20 × 30,178,101.60 - Step 4: Simplify right side
75,583,720.80x = 3,421,459,808,412,650 - Step 5: Solve for x
x = 3,421,459,808,412,650/75,583,720.80 - Step 6: Final answer
x = 45,267,152.40
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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.