Finding the Fourth Proportional to 13,052,420.70, 19,578,631.05 and 11,120,862.30
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Solution
The fourth proportional to 13,052,420.70, 19,578,631.05 and 11,120,862.30 is: 16,681,293.45
Step by Step Solution
- Step 1: Write the proportion equation
13,052,420.70 : 19,578,631.05 = 11,120,862.30 : x - Step 2: Convert to fraction form
13,052,420.70/19,578,631.05 = 11,120,862.30/x - Step 3: Cross multiply
13,052,420.70x = 19,578,631.05 × 11,120,862.30 - Step 4: Simplify right side
13,052,420.70x = 217,731,259,929,554.44 - Step 5: Solve for x
x = 217,731,259,929,554.44/13,052,420.70 - Step 6: Final answer
x = 16,681,293.45
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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.