Finding the Fourth Proportional to 20,190,688.08, 27,863,005.68 and 11,023,330.80
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Solution
The fourth proportional to 20,190,688.08, 27,863,005.68 and 11,023,330.80 is: 15,212,117.96
Step by Step Solution
- Step 1: Write the proportion equation
20,190,688.08 : 27,863,005.68 = 11,023,330.80 : x - Step 2: Convert to fraction form
20,190,688.08/27,863,005.68 = 11,023,330.80/x - Step 3: Cross multiply
20,190,688.08x = 27,863,005.68 × 11,023,330.80 - Step 4: Simplify right side
20,190,688.08x = 307,143,128,692,918.94 - Step 5: Solve for x
x = 307,143,128,692,918.94/20,190,688.08 - Step 6: Final answer
x = 15,212,117.96
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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.