Finding the Fourth Proportional to 5,251,885.56, 7,871,201.64 and 2,817,000.09
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Solution
The fourth proportional to 5,251,885.56, 7,871,201.64 and 2,817,000.09 is: 4,221,945.71
Step by Step Solution
- Step 1: Write the proportion equation
5,251,885.56 : 7,871,201.64 = 2,817,000.09 : x - Step 2: Convert to fraction form
5,251,885.56/7,871,201.64 = 2,817,000.09/x - Step 3: Cross multiply
5,251,885.56x = 7,871,201.64 × 2,817,000.09 - Step 4: Simplify right side
5,251,885.56x = 22,173,175,728,288.14 - Step 5: Solve for x
x = 22,173,175,728,288.14/5,251,885.56 - Step 6: Final answer
x = 4,221,945.71
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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.