Finding the Fourth Proportional to 13,943,986.64, 19,239,716.68 and 8,140,134.48
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Solution
The fourth proportional to 13,943,986.64, 19,239,716.68 and 8,140,134.48 is: 11,231,643.09
Step by Step Solution
- Step 1: Write the proportion equation
13,943,986.64 : 19,239,716.68 = 8,140,134.48 : x - Step 2: Convert to fraction form
13,943,986.64/19,239,716.68 = 8,140,134.48/x - Step 3: Cross multiply
13,943,986.64x = 19,239,716.68 × 8,140,134.48 - Step 4: Simplify right side
13,943,986.64x = 156,613,881,132,299.12 - Step 5: Solve for x
x = 156,613,881,132,299.12/13,943,986.64 - Step 6: Final answer
x = 11,231,643.09
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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.