Finding the Fourth Proportional to 11,938,832.79, 16,475,431.65 and 6,640,491.99
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Solution
The fourth proportional to 11,938,832.79, 16,475,431.65 and 6,640,491.99 is: 9,163,791.29
Step by Step Solution
- Step 1: Write the proportion equation
11,938,832.79 : 16,475,431.65 = 6,640,491.99 : x - Step 2: Convert to fraction form
11,938,832.79/16,475,431.65 = 6,640,491.99/x - Step 3: Cross multiply
11,938,832.79x = 16,475,431.65 × 6,640,491.99 - Step 4: Simplify right side
11,938,832.79x = 109,404,971,903,617.48 - Step 5: Solve for x
x = 109,404,971,903,617.48/11,938,832.79 - Step 6: Final answer
x = 9,163,791.29
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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.