Finding the Fourth Proportional to 7,432,823.80, 11,149,235.70 and 2,645,918.20
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Solution
The fourth proportional to 7,432,823.80, 11,149,235.70 and 2,645,918.20 is: 3,968,877.30
Step by Step Solution
- Step 1: Write the proportion equation
7,432,823.80 : 11,149,235.70 = 2,645,918.20 : x - Step 2: Convert to fraction form
7,432,823.80/11,149,235.70 = 2,645,918.20/x - Step 3: Cross multiply
7,432,823.80x = 11,149,235.70 × 2,645,918.20 - Step 4: Simplify right side
7,432,823.80x = 29,499,965,654,719.74 - Step 5: Solve for x
x = 29,499,965,654,719.74/7,432,823.80 - Step 6: Final answer
x = 3,968,877.30
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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.