Finding the Fourth Proportional to 39,210,765.42, 54,112,349.20 and 21,808,369.02
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Solution
The fourth proportional to 39,210,765.42, 54,112,349.20 and 21,808,369.02 is: 30,096,379.58
Step by Step Solution
- Step 1: Write the proportion equation
39,210,765.42 : 54,112,349.20 = 21,808,369.02 : x - Step 2: Convert to fraction form
39,210,765.42/54,112,349.20 = 21,808,369.02/x - Step 3: Cross multiply
39,210,765.42x = 54,112,349.20 × 21,808,369.02 - Step 4: Simplify right side
39,210,765.42x = 1,180,102,079,892,701.75 - Step 5: Solve for x
x = 1,180,102,079,892,701.75/39,210,765.42 - Step 6: Final answer
x = 30,096,379.58
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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.