Finding the Fourth Proportional to 12,480,470.18, 17,224,759.68 and 7,182,056.28
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Solution
The fourth proportional to 12,480,470.18, 17,224,759.68 and 7,182,056.28 is: 9,912,222.18
Step by Step Solution
- Step 1: Write the proportion equation
12,480,470.18 : 17,224,759.68 = 7,182,056.28 : x - Step 2: Convert to fraction form
12,480,470.18/17,224,759.68 = 7,182,056.28/x - Step 3: Cross multiply
12,480,470.18x = 17,224,759.68 × 7,182,056.28 - Step 4: Simplify right side
12,480,470.18x = 123,709,193,413,279.64 - Step 5: Solve for x
x = 123,709,193,413,279.64/12,480,470.18 - Step 6: Final answer
x = 9,912,222.18
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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.