Finding the Fourth Proportional to 19,657,561.23, 27,128,358.20 and 10,955,796.17
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Solution
The fourth proportional to 19,657,561.23, 27,128,358.20 and 10,955,796.17 is: 15,119,513.52
Step by Step Solution
- Step 1: Write the proportion equation
19,657,561.23 : 27,128,358.20 = 10,955,796.17 : x - Step 2: Convert to fraction form
19,657,561.23/27,128,358.20 = 10,955,796.17/x - Step 3: Cross multiply
19,657,561.23x = 27,128,358.20 × 10,955,796.17 - Step 4: Simplify right side
19,657,561.23x = 297,212,762,757,695.75 - Step 5: Solve for x
x = 297,212,762,757,695.75/19,657,561.23 - Step 6: Final answer
x = 15,119,513.52
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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.