Finding the Fourth Proportional to 19,872,138.80, 29,808,208.20 and 17,352,714.80
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Solution
The fourth proportional to 19,872,138.80, 29,808,208.20 and 17,352,714.80 is: 26,029,072.20
Step by Step Solution
- Step 1: Write the proportion equation
19,872,138.80 : 29,808,208.20 = 17,352,714.80 : x - Step 2: Convert to fraction form
19,872,138.80/29,808,208.20 = 17,352,714.80/x - Step 3: Cross multiply
19,872,138.80x = 29,808,208.20 × 17,352,714.80 - Step 4: Simplify right side
19,872,138.80x = 517,253,335,593,621.38 - Step 5: Solve for x
x = 517,253,335,593,621.38/19,872,138.80 - Step 6: Final answer
x = 26,029,072.20
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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.