Finding the Fourth Proportional to 18,403,748.16, 25,395,679.25 and 10,669,288.70
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Solution
The fourth proportional to 18,403,748.16, 25,395,679.25 and 10,669,288.70 is: 14,722,752.75
Step by Step Solution
- Step 1: Write the proportion equation
18,403,748.16 : 25,395,679.25 = 10,669,288.70 : x - Step 2: Convert to fraction form
18,403,748.16/25,395,679.25 = 10,669,288.70/x - Step 3: Cross multiply
18,403,748.16x = 25,395,679.25 × 10,669,288.70 - Step 4: Simplify right side
18,403,748.16x = 270,953,833,701,002.09 - Step 5: Solve for x
x = 270,953,833,701,002.09/18,403,748.16 - Step 6: Final answer
x = 14,722,752.75
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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.