Finding the Fourth Proportional to 7,490,605.80, 11,216,900.70 and 4,121,005.80
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Solution
The fourth proportional to 7,490,605.80, 11,216,900.70 and 4,121,005.80 is: 6,171,051.32
Step by Step Solution
- Step 1: Write the proportion equation
7,490,605.80 : 11,216,900.70 = 4,121,005.80 : x - Step 2: Convert to fraction form
7,490,605.80/11,216,900.70 = 4,121,005.80/x - Step 3: Cross multiply
7,490,605.80x = 11,216,900.70 × 4,121,005.80 - Step 4: Simplify right side
7,490,605.80x = 46,224,912,842,724.05 - Step 5: Solve for x
x = 46,224,912,842,724.05/7,490,605.80 - Step 6: Final answer
x = 6,171,051.32
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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.