Finding the Fourth Proportional to 118,341,037.20, 177,511,555.80 and 69,842,125.20
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Solution
The fourth proportional to 118,341,037.20, 177,511,555.80 and 69,842,125.20 is: 104,763,187.80
Step by Step Solution
- Step 1: Write the proportion equation
118,341,037.20 : 177,511,555.80 = 69,842,125.20 : x - Step 2: Convert to fraction form
118,341,037.20/177,511,555.80 = 69,842,125.20/x - Step 3: Cross multiply
118,341,037.20x = 177,511,555.80 × 69,842,125.20 - Step 4: Simplify right side
118,341,037.20x = 12,397,784,304,630,388 - Step 5: Solve for x
x = 12,397,784,304,630,388/118,341,037.20 - Step 6: Final answer
x = 104,763,187.80
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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.