Finding the Fourth Proportional to 75,549,473.20, 113,324,209.80 and 73,869,857.20
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Solution
The fourth proportional to 75,549,473.20, 113,324,209.80 and 73,869,857.20 is: 110,804,785.80
Step by Step Solution
- Step 1: Write the proportion equation
75,549,473.20 : 113,324,209.80 = 73,869,857.20 : x - Step 2: Convert to fraction form
75,549,473.20/113,324,209.80 = 73,869,857.20/x - Step 3: Cross multiply
75,549,473.20x = 113,324,209.80 × 73,869,857.20 - Step 4: Simplify right side
75,549,473.20x = 8,371,243,195,228,841 - Step 5: Solve for x
x = 8,371,243,195,228,841/75,549,473.20 - Step 6: Final answer
x = 110,804,785.80
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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.