Finding the Fourth Proportional to 27,579,678.19, 38,058,463.27 and 15,187,349.59
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Solution
The fourth proportional to 27,579,678.19, 38,058,463.27 and 15,187,349.59 is: 20,957,720.48
Step by Step Solution
- Step 1: Write the proportion equation
27,579,678.19 : 38,058,463.27 = 15,187,349.59 : x - Step 2: Convert to fraction form
27,579,678.19/38,058,463.27 = 15,187,349.59/x - Step 3: Cross multiply
27,579,678.19x = 38,058,463.27 × 15,187,349.59 - Step 4: Simplify right side
27,579,678.19x = 578,007,186,539,664.62 - Step 5: Solve for x
x = 578,007,186,539,664.62/27,579,678.19 - Step 6: Final answer
x = 20,957,720.48
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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.