Finding the Fourth Proportional to 19,795,385.80, 29,693,078.70 and 19,476,521.20
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Solution
The fourth proportional to 19,795,385.80, 29,693,078.70 and 19,476,521.20 is: 29,214,781.80
Step by Step Solution
- Step 1: Write the proportion equation
19,795,385.80 : 29,693,078.70 = 19,476,521.20 : x - Step 2: Convert to fraction form
19,795,385.80/29,693,078.70 = 19,476,521.20/x - Step 3: Cross multiply
19,795,385.80x = 29,693,078.70 × 19,476,521.20 - Step 4: Simplify right side
19,795,385.80x = 578,317,876,793,818.38 - Step 5: Solve for x
x = 578,317,876,793,818.38/19,795,385.80 - Step 6: Final answer
x = 29,214,781.80
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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.