Finding the Fourth Proportional to 11,038,178.64, 16,557,343.29 and 4,212,911.28
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Solution
The fourth proportional to 11,038,178.64, 16,557,343.29 and 4,212,911.28 is: 6,319,395.67
Step by Step Solution
- Step 1: Write the proportion equation
11,038,178.64 : 16,557,343.29 = 4,212,911.28 : x - Step 2: Convert to fraction form
11,038,178.64/16,557,343.29 = 4,212,911.28/x - Step 3: Cross multiply
11,038,178.64x = 16,557,343.29 × 4,212,911.28 - Step 4: Simplify right side
11,038,178.64x = 69,754,618,313,273.31 - Step 5: Solve for x
x = 69,754,618,313,273.31/11,038,178.64 - Step 6: Final answer
x = 6,319,395.67
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.