Finding the Fourth Proportional to 299,467,811.60, 449,201,717.40 and 138,224,675.60
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Solution
The fourth proportional to 299,467,811.60, 449,201,717.40 and 138,224,675.60 is: 207,337,013.40
Step by Step Solution
- Step 1: Write the proportion equation
299,467,811.60 : 449,201,717.40 = 138,224,675.60 : x - Step 2: Convert to fraction form
299,467,811.60/449,201,717.40 = 138,224,675.60/x - Step 3: Cross multiply
299,467,811.60x = 449,201,717.40 × 138,224,675.60 - Step 4: Simplify right side
299,467,811.60x = 62,090,761,666,577,872 - Step 5: Solve for x
x = 62,090,761,666,577,872/299,467,811.60 - Step 6: Final answer
x = 207,337,013.40
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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.