Finding the Fourth Proportional to 141,415,781.50, 195,043,220.82 and 91,872,118.18
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Solution
The fourth proportional to 141,415,781.50, 195,043,220.82 and 91,872,118.18 is: 126,711,698.25
Step by Step Solution
- Step 1: Write the proportion equation
141,415,781.50 : 195,043,220.82 = 91,872,118.18 : x - Step 2: Convert to fraction form
141,415,781.50/195,043,220.82 = 91,872,118.18/x - Step 3: Cross multiply
141,415,781.50x = 195,043,220.82 × 91,872,118.18 - Step 4: Simplify right side
141,415,781.50x = 17,919,033,833,382,878 - Step 5: Solve for x
x = 17,919,033,833,382,878/141,415,781.50 - Step 6: Final answer
x = 126,711,698.25
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.