Finding the Fourth Proportional to 12,749,268.94, 17,596,830.85 and 8,102,147.84
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Solution
The fourth proportional to 12,749,268.94, 17,596,830.85 and 8,102,147.84 is: 11,182,768.65
Step by Step Solution
- Step 1: Write the proportion equation
12,749,268.94 : 17,596,830.85 = 8,102,147.84 : x - Step 2: Convert to fraction form
12,749,268.94/17,596,830.85 = 8,102,147.84/x - Step 3: Cross multiply
12,749,268.94x = 17,596,830.85 × 8,102,147.84 - Step 4: Simplify right side
12,749,268.94x = 142,572,124,953,933.34 - Step 5: Solve for x
x = 142,572,124,953,933.34/12,749,268.94 - Step 6: Final answer
x = 11,182,768.65
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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.