Finding the Fourth Proportional to 118,125,187.20, 177,187,780.80 and 54,299,779.20
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Solution
The fourth proportional to 118,125,187.20, 177,187,780.80 and 54,299,779.20 is: 81,449,668.80
Step by Step Solution
- Step 1: Write the proportion equation
118,125,187.20 : 177,187,780.80 = 54,299,779.20 : x - Step 2: Convert to fraction form
118,125,187.20/177,187,780.80 = 54,299,779.20/x - Step 3: Cross multiply
118,125,187.20x = 177,187,780.80 × 54,299,779.20 - Step 4: Simplify right side
118,125,187.20x = 9,621,257,374,378,000 - Step 5: Solve for x
x = 9,621,257,374,378,000/118,125,187.20 - Step 6: Final answer
x = 81,449,668.80
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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.