Finding the Fourth Proportional to 79,799,608.68, 110,123,410.20 and 43,130,179.68
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Solution
The fourth proportional to 79,799,608.68, 110,123,410.20 and 43,130,179.68 is: 59,519,621.05
Step by Step Solution
- Step 1: Write the proportion equation
79,799,608.68 : 110,123,410.20 = 43,130,179.68 : x - Step 2: Convert to fraction form
79,799,608.68/110,123,410.20 = 43,130,179.68/x - Step 3: Cross multiply
79,799,608.68x = 110,123,410.20 × 43,130,179.68 - Step 4: Simplify right side
79,799,608.68x = 4,749,642,468,900,345 - Step 5: Solve for x
x = 4,749,642,468,900,345/79,799,608.68 - Step 6: Final answer
x = 59,519,621.05
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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.