Finding the Fourth Proportional to 15,485,417.52, 21,370,424.84 and 8,516,634.08
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Solution
The fourth proportional to 15,485,417.52, 21,370,424.84 and 8,516,634.08 is: 11,753,256.78
Step by Step Solution
- Step 1: Write the proportion equation
15,485,417.52 : 21,370,424.84 = 8,516,634.08 : x - Step 2: Convert to fraction form
15,485,417.52/21,370,424.84 = 8,516,634.08/x - Step 3: Cross multiply
15,485,417.52x = 21,370,424.84 × 8,516,634.08 - Step 4: Simplify right side
15,485,417.52x = 182,004,088,496,422.56 - Step 5: Solve for x
x = 182,004,088,496,422.56/15,485,417.52 - Step 6: Final answer
x = 11,753,256.78
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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.