Finding the Fourth Proportional to 28,166,705.06, 38,850,645.97 and 19,811,794.74
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Solution
The fourth proportional to 28,166,705.06, 38,850,645.97 and 19,811,794.74 is: 27,326,626.31
Step by Step Solution
- Step 1: Write the proportion equation
28,166,705.06 : 38,850,645.97 = 19,811,794.74 : x - Step 2: Convert to fraction form
28,166,705.06/38,850,645.97 = 19,811,794.74/x - Step 3: Cross multiply
28,166,705.06x = 38,850,645.97 × 19,811,794.74 - Step 4: Simplify right side
28,166,705.06x = 769,701,023,474,048.12 - Step 5: Solve for x
x = 769,701,023,474,048.12/28,166,705.06 - Step 6: Final answer
x = 27,326,626.31
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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.