Finding the Fourth Proportional to 128,690,349.30, 192,873,960.35 and 69,600,374.25
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Solution
The fourth proportional to 128,690,349.30, 192,873,960.35 and 69,600,374.25 is: 104,313,181.96
Step by Step Solution
- Step 1: Write the proportion equation
128,690,349.30 : 192,873,960.35 = 69,600,374.25 : x - Step 2: Convert to fraction form
128,690,349.30/192,873,960.35 = 69,600,374.25/x - Step 3: Cross multiply
128,690,349.30x = 192,873,960.35 × 69,600,374.25 - Step 4: Simplify right side
128,690,349.30x = 13,424,099,823,091,660 - Step 5: Solve for x
x = 13,424,099,823,091,660/128,690,349.30 - Step 6: Final answer
x = 104,313,181.96
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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.