Finding the Fourth Proportional to 19,979,989.24, 27,572,434.14 and 10,812,698.68
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Solution
The fourth proportional to 19,979,989.24, 27,572,434.14 and 10,812,698.68 is: 14,921,550.69
Step by Step Solution
- Step 1: Write the proportion equation
19,979,989.24 : 27,572,434.14 = 10,812,698.68 : x - Step 2: Convert to fraction form
19,979,989.24/27,572,434.14 = 10,812,698.68/x - Step 3: Cross multiply
19,979,989.24x = 27,572,434.14 × 10,812,698.68 - Step 4: Simplify right side
19,979,989.24x = 298,132,422,229,964.94 - Step 5: Solve for x
x = 298,132,422,229,964.94/19,979,989.24 - Step 6: Final answer
x = 14,921,550.69
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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.