Finding the Fourth Proportional to 42,276,449.70, 58,320,768.66 and 36,686,850.98
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Solution
The fourth proportional to 42,276,449.70, 58,320,768.66 and 36,686,850.98 is: 50,609,863.50
Step by Step Solution
- Step 1: Write the proportion equation
42,276,449.70 : 58,320,768.66 = 36,686,850.98 : x - Step 2: Convert to fraction form
42,276,449.70/58,320,768.66 = 36,686,850.98/x - Step 3: Cross multiply
42,276,449.70x = 58,320,768.66 × 36,686,850.98 - Step 4: Simplify right side
42,276,449.70x = 2,139,605,348,576,870.50 - Step 5: Solve for x
x = 2,139,605,348,576,870.50/42,276,449.70 - Step 6: Final answer
x = 50,609,863.50
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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.