Finding the Fourth Proportional to 33,138,985.68, 45,730,524.78 and 18,455,270.94
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Solution
The fourth proportional to 33,138,985.68, 45,730,524.78 and 18,455,270.94 is: 25,467,563.59
Step by Step Solution
- Step 1: Write the proportion equation
33,138,985.68 : 45,730,524.78 = 18,455,270.94 : x - Step 2: Convert to fraction form
33,138,985.68/45,730,524.78 = 18,455,270.94/x - Step 3: Cross multiply
33,138,985.68x = 45,730,524.78 × 18,455,270.94 - Step 4: Simplify right side
33,138,985.68x = 843,969,225,043,284 - Step 5: Solve for x
x = 843,969,225,043,284/33,138,985.68 - Step 6: Final answer
x = 25,467,563.59
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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.