Finding the Fourth Proportional to 14,386,919.80, 19,853,714.72 and 7,860,408.80
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Solution
The fourth proportional to 14,386,919.80, 19,853,714.72 and 7,860,408.80 is: 10,847,235.97
Step by Step Solution
- Step 1: Write the proportion equation
14,386,919.80 : 19,853,714.72 = 7,860,408.80 : x - Step 2: Convert to fraction form
14,386,919.80/19,853,714.72 = 7,860,408.80/x - Step 3: Cross multiply
14,386,919.80x = 19,853,714.72 × 7,860,408.80 - Step 4: Simplify right side
14,386,919.80x = 156,058,313,897,777.53 - Step 5: Solve for x
x = 156,058,313,897,777.53/14,386,919.80 - Step 6: Final answer
x = 10,847,235.97
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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.