Finding the Fourth Proportional to 79,749,311.09, 110,074,525.94 and 51,941,316.31
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Solution
The fourth proportional to 79,749,311.09, 110,074,525.94 and 51,941,316.31 is: 71,692,353.09
Step by Step Solution
- Step 1: Write the proportion equation
79,749,311.09 : 110,074,525.94 = 51,941,316.31 : x - Step 2: Convert to fraction form
79,749,311.09/110,074,525.94 = 51,941,316.31/x - Step 3: Cross multiply
79,749,311.09x = 110,074,525.94 × 51,941,316.31 - Step 4: Simplify right side
79,749,311.09x = 5,717,415,769,377,507 - Step 5: Solve for x
x = 5,717,415,769,377,507/79,749,311.09 - Step 6: Final answer
x = 71,692,353.09
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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.