Finding the Fourth Proportional to 124,578,469.20, 186,867,703.80 and 55,491,139.20
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Solution
The fourth proportional to 124,578,469.20, 186,867,703.80 and 55,491,139.20 is: 83,236,708.80
Step by Step Solution
- Step 1: Write the proportion equation
124,578,469.20 : 186,867,703.80 = 55,491,139.20 : x - Step 2: Convert to fraction form
124,578,469.20/186,867,703.80 = 55,491,139.20/x - Step 3: Cross multiply
124,578,469.20x = 186,867,703.80 × 55,491,139.20 - Step 4: Simplify right side
124,578,469.20x = 10,369,501,763,550,170 - Step 5: Solve for x
x = 10,369,501,763,550,170/124,578,469.20 - Step 6: Final answer
x = 83,236,708.80
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.