Finding the Fourth Proportional to 128,260,661.58, 192,321,782.48 and 58,192,647.90
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Solution
The fourth proportional to 128,260,661.58, 192,321,782.48 and 58,192,647.90 is: 87,257,570.90
Step by Step Solution
- Step 1: Write the proportion equation
128,260,661.58 : 192,321,782.48 = 58,192,647.90 : x - Step 2: Convert to fraction form
128,260,661.58/192,321,782.48 = 58,192,647.90/x - Step 3: Cross multiply
128,260,661.58x = 192,321,782.48 × 58,192,647.90 - Step 4: Simplify right side
128,260,661.58x = 11,191,713,771,068,064 - Step 5: Solve for x
x = 11,191,713,771,068,064/128,260,661.58 - Step 6: Final answer
x = 87,257,570.90
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.