Finding the Fourth Proportional to 66,430,295.20, 99,645,442.80 and 66,430,295.20
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Solution
The fourth proportional to 66,430,295.20, 99,645,442.80 and 66,430,295.20 is: 99,645,442.80
Step by Step Solution
- Step 1: Write the proportion equation
66,430,295.20 : 99,645,442.80 = 66,430,295.20 : x - Step 2: Convert to fraction form
66,430,295.20/99,645,442.80 = 66,430,295.20/x - Step 3: Cross multiply
66,430,295.20x = 99,645,442.80 × 66,430,295.20 - Step 4: Simplify right side
66,430,295.20x = 6,619,476,180,538,715 - Step 5: Solve for x
x = 6,619,476,180,538,715/66,430,295.20 - Step 6: Final answer
x = 99,645,442.80
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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.