Finding the Fourth Proportional to 19,420,748.60, 29,121,828.14 and 9,177,059.30
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Solution
The fourth proportional to 19,420,748.60, 29,121,828.14 and 9,177,059.30 is: 13,761,196.81
Step by Step Solution
- Step 1: Write the proportion equation
19,420,748.60 : 29,121,828.14 = 9,177,059.30 : x - Step 2: Convert to fraction form
19,420,748.60/29,121,828.14 = 9,177,059.30/x - Step 3: Cross multiply
19,420,748.60x = 29,121,828.14 × 9,177,059.30 - Step 4: Simplify right side
19,420,748.60x = 267,252,743,642,522.19 - Step 5: Solve for x
x = 267,252,743,642,522.19/19,420,748.60 - Step 6: Final answer
x = 13,761,196.81
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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.