Finding the Fourth Proportional to 15,655,498.24, 21,601,137.36 and 15,139,409.44
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Solution
The fourth proportional to 15,655,498.24, 21,601,137.36 and 15,139,409.44 is: 20,889,048.55
Step by Step Solution
- Step 1: Write the proportion equation
15,655,498.24 : 21,601,137.36 = 15,139,409.44 : x - Step 2: Convert to fraction form
15,655,498.24/21,601,137.36 = 15,139,409.44/x - Step 3: Cross multiply
15,655,498.24x = 21,601,137.36 × 15,139,409.44 - Step 4: Simplify right side
15,655,498.24x = 327,028,462,862,720.69 - Step 5: Solve for x
x = 327,028,462,862,720.69/15,655,498.24 - Step 6: Final answer
x = 20,889,048.55
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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.