Finding the Fourth Proportional to 19,819,218.51, 29,708,741.39 and 13,430,116.71
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Solution
The fourth proportional to 19,819,218.51, 29,708,741.39 and 13,430,116.71 is: 20,131,563.91
Step by Step Solution
- Step 1: Write the proportion equation
19,819,218.51 : 29,708,741.39 = 13,430,116.71 : x - Step 2: Convert to fraction form
19,819,218.51/29,708,741.39 = 13,430,116.71/x - Step 3: Cross multiply
19,819,218.51x = 29,708,741.39 × 13,430,116.71 - Step 4: Simplify right side
19,819,218.51x = 398,991,864,107,757.06 - Step 5: Solve for x
x = 398,991,864,107,757.06/19,819,218.51 - Step 6: Final answer
x = 20,131,563.91
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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.