Finding the Fourth Proportional to 22,391,761.68, 30,888,779.00 and 15,410,318.45
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Solution
The fourth proportional to 22,391,761.68, 30,888,779.00 and 15,410,318.45 is: 21,258,082.66
Step by Step Solution
- Step 1: Write the proportion equation
22,391,761.68 : 30,888,779.00 = 15,410,318.45 : x - Step 2: Convert to fraction form
22,391,761.68/30,888,779.00 = 15,410,318.45/x - Step 3: Cross multiply
22,391,761.68x = 30,888,779.00 × 15,410,318.45 - Step 4: Simplify right side
22,391,761.68x = 476,005,920,690,177.06 - Step 5: Solve for x
x = 476,005,920,690,177.06/22,391,761.68 - Step 6: Final answer
x = 21,258,082.66
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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.