Finding the Fourth Proportional to 19,584,086.40, 29,376,129.60 and 18,837,590.40
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Solution
The fourth proportional to 19,584,086.40, 29,376,129.60 and 18,837,590.40 is: 28,256,385.60
Step by Step Solution
- Step 1: Write the proportion equation
19,584,086.40 : 29,376,129.60 = 18,837,590.40 : x - Step 2: Convert to fraction form
19,584,086.40/29,376,129.60 = 18,837,590.40/x - Step 3: Cross multiply
19,584,086.40x = 29,376,129.60 × 18,837,590.40 - Step 4: Simplify right side
19,584,086.40x = 553,375,496,942,115.81 - Step 5: Solve for x
x = 553,375,496,942,115.81/19,584,086.40 - Step 6: Final answer
x = 28,256,385.60
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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.