Finding the Fourth Proportional to 20,832,277.55, 31,296,442.84 and 19,971,357.71
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Solution
The fourth proportional to 20,832,277.55, 31,296,442.84 and 19,971,357.71 is: 30,003,078.32
Step by Step Solution
- Step 1: Write the proportion equation
20,832,277.55 : 31,296,442.84 = 19,971,357.71 : x - Step 2: Convert to fraction form
20,832,277.55/31,296,442.84 = 19,971,357.71/x - Step 3: Cross multiply
20,832,277.55x = 31,296,442.84 × 19,971,357.71 - Step 4: Simplify right side
20,832,277.55x = 625,032,454,801,797.62 - Step 5: Solve for x
x = 625,032,454,801,797.62/20,832,277.55 - Step 6: Final answer
x = 30,003,078.32
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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.