Finding the Fourth Proportional to 6,451,805.76, 8,903,421.44 and 3,551,134.40
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Solution
The fourth proportional to 6,451,805.76, 8,903,421.44 and 3,551,134.40 is: 4,900,526.66
Step by Step Solution
- Step 1: Write the proportion equation
6,451,805.76 : 8,903,421.44 = 3,551,134.40 : x - Step 2: Convert to fraction form
6,451,805.76/8,903,421.44 = 3,551,134.40/x - Step 3: Cross multiply
6,451,805.76x = 8,903,421.44 × 3,551,134.40 - Step 4: Simplify right side
6,451,805.76x = 31,617,246,153,281.54 - Step 5: Solve for x
x = 31,617,246,153,281.54/6,451,805.76 - Step 6: Final answer
x = 4,900,526.66
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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.