Finding the Fourth Proportional to 19,286,321.99, 28,929,645.17 and 4,909,392.23
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Solution
The fourth proportional to 19,286,321.99, 28,929,645.17 and 4,909,392.23 is: 7,364,129.63
Step by Step Solution
- Step 1: Write the proportion equation
19,286,321.99 : 28,929,645.17 = 4,909,392.23 : x - Step 2: Convert to fraction form
19,286,321.99/28,929,645.17 = 4,909,392.23/x - Step 3: Cross multiply
19,286,321.99x = 28,929,645.17 × 4,909,392.23 - Step 4: Simplify right side
19,286,321.99x = 142,026,975,189,708.06 - Step 5: Solve for x
x = 142,026,975,189,708.06/19,286,321.99 - Step 6: Final answer
x = 7,364,129.63
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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.