Finding the Fourth Proportional to 55,207,311.08, 76,182,980.33 and 30,427,422.82
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Solution
The fourth proportional to 55,207,311.08, 76,182,980.33 and 30,427,422.82 is: 41,988,129.99
Step by Step Solution
- Step 1: Write the proportion equation
55,207,311.08 : 76,182,980.33 = 30,427,422.82 : x - Step 2: Convert to fraction form
55,207,311.08/76,182,980.33 = 30,427,422.82/x - Step 3: Cross multiply
55,207,311.08x = 76,182,980.33 × 30,427,422.82 - Step 4: Simplify right side
55,207,311.08x = 2,318,051,754,074,264 - Step 5: Solve for x
x = 2,318,051,754,074,264/55,207,311.08 - Step 6: Final answer
x = 41,988,129.99
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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.