Finding the Fourth Proportional to 67,068,145.80, 100,602,218.70 and 66,430,416.60
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Solution
The fourth proportional to 67,068,145.80, 100,602,218.70 and 66,430,416.60 is: 99,645,624.90
Step by Step Solution
- Step 1: Write the proportion equation
67,068,145.80 : 100,602,218.70 = 66,430,416.60 : x - Step 2: Convert to fraction form
67,068,145.80/100,602,218.70 = 66,430,416.60/x - Step 3: Cross multiply
67,068,145.80x = 100,602,218.70 × 66,430,416.60 - Step 4: Simplify right side
67,068,145.80x = 6,683,047,299,125,311 - Step 5: Solve for x
x = 6,683,047,299,125,311/67,068,145.80 - Step 6: Final answer
x = 99,645,624.90
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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.