Finding the Fourth Proportional to 19,286,486.04, 28,934,147.40 and 8,358,509.97
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Solution
The fourth proportional to 19,286,486.04, 28,934,147.40 and 8,358,509.97 is: 12,539,679.81
Step by Step Solution
- Step 1: Write the proportion equation
19,286,486.04 : 28,934,147.40 = 8,358,509.97 : x - Step 2: Convert to fraction form
19,286,486.04/28,934,147.40 = 8,358,509.97/x - Step 3: Cross multiply
19,286,486.04x = 28,934,147.40 × 8,358,509.97 - Step 4: Simplify right side
19,286,486.04x = 241,846,359,516,349.56 - Step 5: Solve for x
x = 241,846,359,516,349.56/19,286,486.04 - Step 6: Final answer
x = 12,539,679.81
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.