Finding the Fourth Proportional to 7,646,937.20, 11,470,405.80 and 4,623,628.40
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Solution
The fourth proportional to 7,646,937.20, 11,470,405.80 and 4,623,628.40 is: 6,935,442.60
Step by Step Solution
- Step 1: Write the proportion equation
7,646,937.20 : 11,470,405.80 = 4,623,628.40 : x - Step 2: Convert to fraction form
7,646,937.20/11,470,405.80 = 4,623,628.40/x - Step 3: Cross multiply
7,646,937.20x = 11,470,405.80 × 4,623,628.40 - Step 4: Simplify right side
7,646,937.20x = 53,034,894,016,404.73 - Step 5: Solve for x
x = 53,034,894,016,404.73/7,646,937.20 - Step 6: Final answer
x = 6,935,442.60
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.