Finding the Fourth Proportional to 12,950,406.51, 17,871,618.06 and 7,149,235.92
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Solution
The fourth proportional to 12,950,406.51, 17,871,618.06 and 7,149,235.92 is: 9,865,977.08
Step by Step Solution
- Step 1: Write the proportion equation
12,950,406.51 : 17,871,618.06 = 7,149,235.92 : x - Step 2: Convert to fraction form
12,950,406.51/17,871,618.06 = 7,149,235.92/x - Step 3: Cross multiply
12,950,406.51x = 17,871,618.06 × 7,149,235.92 - Step 4: Simplify right side
12,950,406.51x = 127,768,413,783,072.70 - Step 5: Solve for x
x = 127,768,413,783,072.70/12,950,406.51 - Step 6: Final answer
x = 9,865,977.08
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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.