Finding the Fourth Proportional to 19,908,871.80, 27,459,573.48 and 15,014,299.92
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Solution
The fourth proportional to 19,908,871.80, 27,459,573.48 and 15,014,299.92 is: 20,708,670.79
Step by Step Solution
- Step 1: Write the proportion equation
19,908,871.80 : 27,459,573.48 = 15,014,299.92 : x - Step 2: Convert to fraction form
19,908,871.80/27,459,573.48 = 15,014,299.92/x - Step 3: Cross multiply
19,908,871.80x = 27,459,573.48 × 15,014,299.92 - Step 4: Simplify right side
19,908,871.80x = 412,286,271,903,998.12 - Step 5: Solve for x
x = 412,286,271,903,998.12/19,908,871.80 - Step 6: Final answer
x = 20,708,670.79
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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.