Finding the Fourth Proportional to 21,702,267.40, 29,949,161.83 and 11,779,153.65
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Solution
The fourth proportional to 21,702,267.40, 29,949,161.83 and 11,779,153.65 is: 16,255,249.85
Step by Step Solution
- Step 1: Write the proportion equation
21,702,267.40 : 29,949,161.83 = 11,779,153.65 : x - Step 2: Convert to fraction form
21,702,267.40/29,949,161.83 = 11,779,153.65/x - Step 3: Cross multiply
21,702,267.40x = 29,949,161.83 × 11,779,153.65 - Step 4: Simplify right side
21,702,267.40x = 352,775,778,903,630 - Step 5: Solve for x
x = 352,775,778,903,630/21,702,267.40 - Step 6: Final answer
x = 16,255,249.85
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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.