Finding the Fourth Proportional to 25,230,742.65, 34,818,438.78 and 13,628,306.12
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Solution
The fourth proportional to 25,230,742.65, 34,818,438.78 and 13,628,306.12 is: 18,807,069.96
Step by Step Solution
- Step 1: Write the proportion equation
25,230,742.65 : 34,818,438.78 = 13,628,306.12 : x - Step 2: Convert to fraction form
25,230,742.65/34,818,438.78 = 13,628,306.12/x - Step 3: Cross multiply
25,230,742.65x = 34,818,438.78 × 13,628,306.12 - Step 4: Simplify right side
25,230,742.65x = 474,516,342,140,227.19 - Step 5: Solve for x
x = 474,516,342,140,227.19/25,230,742.65 - Step 6: Final answer
x = 18,807,069.96
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.