Finding the Fourth Proportional to 53,165,679.36, 79,748,509.92 and 12,776,163.84
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Solution
The fourth proportional to 53,165,679.36, 79,748,509.92 and 12,776,163.84 is: 19,164,243.57
Step by Step Solution
- Step 1: Write the proportion equation
53,165,679.36 : 79,748,509.92 = 12,776,163.84 : x - Step 2: Convert to fraction form
53,165,679.36/79,748,509.92 = 12,776,163.84/x - Step 3: Cross multiply
53,165,679.36x = 79,748,509.92 × 12,776,163.84 - Step 4: Simplify right side
53,165,679.36x = 1,018,880,028,733,785.25 - Step 5: Solve for x
x = 1,018,880,028,733,785.25/53,165,679.36 - Step 6: Final answer
x = 19,164,243.57
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.