Finding the Fourth Proportional to 15,926,458.55, 21,928,174.35 and 14,471,811.03
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Solution
The fourth proportional to 15,926,458.55, 21,928,174.35 and 14,471,811.03 is: 19,925,358.46
Step by Step Solution
- Step 1: Write the proportion equation
15,926,458.55 : 21,928,174.35 = 14,471,811.03 : x - Step 2: Convert to fraction form
15,926,458.55/21,928,174.35 = 14,471,811.03/x - Step 3: Cross multiply
15,926,458.55x = 21,928,174.35 × 14,471,811.03 - Step 4: Simplify right side
15,926,458.55x = 317,340,395,535,458.38 - Step 5: Solve for x
x = 317,340,395,535,458.38/15,926,458.55 - Step 6: Final answer
x = 19,925,358.46
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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.