Finding the Fourth Proportional to 28,304,840.17, 38,964,286.37 and 20,948,811.00
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Solution
The fourth proportional to 28,304,840.17, 38,964,286.37 and 20,948,811.00 is: 28,838,017.31
Step by Step Solution
- Step 1: Write the proportion equation
28,304,840.17 : 38,964,286.37 = 20,948,811.00 : x - Step 2: Convert to fraction form
28,304,840.17/38,964,286.37 = 20,948,811.00/x - Step 3: Cross multiply
28,304,840.17x = 38,964,286.37 × 20,948,811.00 - Step 4: Simplify right side
28,304,840.17x = 816,255,470,821,262.12 - Step 5: Solve for x
x = 816,255,470,821,262.12/28,304,840.17 - Step 6: Final answer
x = 28,838,017.31
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1.5x scale
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.