Finding the Fourth Proportional to 75,351,269.92, 103,977,645.12 and 42,305,064.88
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Solution
The fourth proportional to 75,351,269.92, 103,977,645.12 and 42,305,064.88 is: 58,376,999.19
Step by Step Solution
- Step 1: Write the proportion equation
75,351,269.92 : 103,977,645.12 = 42,305,064.88 : x - Step 2: Convert to fraction form
75,351,269.92/103,977,645.12 = 42,305,064.88/x - Step 3: Cross multiply
75,351,269.92x = 103,977,645.12 × 42,305,064.88 - Step 4: Simplify right side
75,351,269.92x = 4,398,781,022,871,216 - Step 5: Solve for x
x = 4,398,781,022,871,216/75,351,269.92 - Step 6: Final answer
x = 58,376,999.19
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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.