Finding the Fourth Proportional to 18,867,291.40, 26,029,302.24 and 11,895,676.48
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Solution
The fourth proportional to 18,867,291.40, 26,029,302.24 and 11,895,676.48 is: 16,411,267.09
Step by Step Solution
- Step 1: Write the proportion equation
18,867,291.40 : 26,029,302.24 = 11,895,676.48 : x - Step 2: Convert to fraction form
18,867,291.40/26,029,302.24 = 11,895,676.48/x - Step 3: Cross multiply
18,867,291.40x = 26,029,302.24 × 11,895,676.48 - Step 4: Simplify right side
18,867,291.40x = 309,636,158,447,179.31 - Step 5: Solve for x
x = 309,636,158,447,179.31/18,867,291.40 - Step 6: Final answer
x = 16,411,267.09
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.