Finding the Fourth Proportional to 55,128,115.72, 82,704,618.98 and 18,239,918.38
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Solution
The fourth proportional to 55,128,115.72, 82,704,618.98 and 18,239,918.38 is: 27,363,995.30
Step by Step Solution
- Step 1: Write the proportion equation
55,128,115.72 : 82,704,618.98 = 18,239,918.38 : x - Step 2: Convert to fraction form
55,128,115.72/82,704,618.98 = 18,239,918.38/x - Step 3: Cross multiply
55,128,115.72x = 82,704,618.98 × 18,239,918.38 - Step 4: Simplify right side
55,128,115.72x = 1,508,525,499,614,637.50 - Step 5: Solve for x
x = 1,508,525,499,614,637.50/55,128,115.72 - Step 6: Final answer
x = 27,363,995.30
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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.