Finding the Fourth Proportional to 66,881,269.20, 100,321,903.80 and 38,183,455.20
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Solution
The fourth proportional to 66,881,269.20, 100,321,903.80 and 38,183,455.20 is: 57,275,182.80
Step by Step Solution
- Step 1: Write the proportion equation
66,881,269.20 : 100,321,903.80 = 38,183,455.20 : x - Step 2: Convert to fraction form
66,881,269.20/100,321,903.80 = 38,183,455.20/x - Step 3: Cross multiply
66,881,269.20x = 100,321,903.80 × 38,183,455.20 - Step 4: Simplify right side
66,881,269.20x = 3,830,636,919,326,010 - Step 5: Solve for x
x = 3,830,636,919,326,010/66,881,269.20 - Step 6: Final answer
x = 57,275,182.80
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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.