Finding the Fourth Proportional to 11,879,854.36, 16,394,194.74 and 6,447,346.36
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Solution
The fourth proportional to 11,879,854.36, 16,394,194.74 and 6,447,346.36 is: 8,897,335.66
Step by Step Solution
- Step 1: Write the proportion equation
11,879,854.36 : 16,394,194.74 = 6,447,346.36 : x - Step 2: Convert to fraction form
11,879,854.36/16,394,194.74 = 6,447,346.36/x - Step 3: Cross multiply
11,879,854.36x = 16,394,194.74 × 6,447,346.36 - Step 4: Simplify right side
11,879,854.36x = 105,699,051,782,070.16 - Step 5: Solve for x
x = 105,699,051,782,070.16/11,879,854.36 - Step 6: Final answer
x = 8,897,335.66
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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.