Finding the Fourth Proportional to 13,792,689.37, 19,032,548.67 and 7,681,686.49
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Solution
The fourth proportional to 13,792,689.37, 19,032,548.67 and 7,681,686.49 is: 10,599,968.43
Step by Step Solution
- Step 1: Write the proportion equation
13,792,689.37 : 19,032,548.67 = 7,681,686.49 : x - Step 2: Convert to fraction form
13,792,689.37/19,032,548.67 = 7,681,686.49/x - Step 3: Cross multiply
13,792,689.37x = 19,032,548.67 × 7,681,686.49 - Step 4: Simplify right side
13,792,689.37x = 146,202,071,950,198.03 - Step 5: Solve for x
x = 146,202,071,950,198.03/13,792,689.37 - Step 6: Final answer
x = 10,599,968.43
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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.