Finding the Fourth Proportional to 19,618,822.72, 27,058,637.76 and 12,745,519.36
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Solution
The fourth proportional to 19,618,822.72, 27,058,637.76 and 12,745,519.36 is: 17,578,852.53
Step by Step Solution
- Step 1: Write the proportion equation
19,618,822.72 : 27,058,637.76 = 12,745,519.36 : x - Step 2: Convert to fraction form
19,618,822.72/27,058,637.76 = 12,745,519.36/x - Step 3: Cross multiply
19,618,822.72x = 27,058,637.76 × 12,745,519.36 - Step 4: Simplify right side
19,618,822.72x = 344,876,391,425,307.06 - Step 5: Solve for x
x = 344,876,391,425,307.06/19,618,822.72 - Step 6: Final answer
x = 17,578,852.53
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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.