Finding the Fourth Proportional to 7,086,033.09, 9,779,036.99 and 3,988,756.31
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Solution
The fourth proportional to 7,086,033.09, 9,779,036.99 and 3,988,756.31 is: 5,504,658.94
Step by Step Solution
- Step 1: Write the proportion equation
7,086,033.09 : 9,779,036.99 = 3,988,756.31 : x - Step 2: Convert to fraction form
7,086,033.09/9,779,036.99 = 3,988,756.31/x - Step 3: Cross multiply
7,086,033.09x = 9,779,036.99 × 3,988,756.31 - Step 4: Simplify right side
7,086,033.09x = 39,006,195,430,746.94 - Step 5: Solve for x
x = 39,006,195,430,746.94/7,086,033.09 - Step 6: Final answer
x = 5,504,658.94
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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.