Finding the Fourth Proportional to 15,839,798.13, 21,858,921.41 and 8,596,454.13
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Solution
The fourth proportional to 15,839,798.13, 21,858,921.41 and 8,596,454.13 is: 11,863,106.69
Step by Step Solution
- Step 1: Write the proportion equation
15,839,798.13 : 21,858,921.41 = 8,596,454.13 : x - Step 2: Convert to fraction form
15,839,798.13/21,858,921.41 = 8,596,454.13/x - Step 3: Cross multiply
15,839,798.13x = 21,858,921.41 × 8,596,454.13 - Step 4: Simplify right side
15,839,798.13x = 187,909,215,232,339.94 - Step 5: Solve for x
x = 187,909,215,232,339.94/15,839,798.13 - Step 6: Final answer
x = 11,863,106.69
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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.