Finding the Fourth Proportional to 20,801,683.05, 28,706,421 and 11,634,325.80
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Solution
The fourth proportional to 20,801,683.05, 28,706,421 and 11,634,325.80 is: 16,055,424.63
Step by Step Solution
- Step 1: Write the proportion equation
20,801,683.05 : 28,706,421 = 11,634,325.80 : x - Step 2: Convert to fraction form
20,801,683.05/28,706,421 = 11,634,325.80/x - Step 3: Cross multiply
20,801,683.05x = 28,706,421 × 11,634,325.80 - Step 4: Simplify right side
20,801,683.05x = 333,979,854,465,961.81 - Step 5: Solve for x
x = 333,979,854,465,961.81/20,801,683.05 - Step 6: Final answer
x = 16,055,424.63
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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.