Finding the Fourth Proportional to 128,723,044.72, 177,641,285 and 69,989,653.04
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Solution
The fourth proportional to 128,723,044.72, 177,641,285 and 69,989,653.04 is: 96,587,615.14
Step by Step Solution
- Step 1: Write the proportion equation
128,723,044.72 : 177,641,285 = 69,989,653.04 : x - Step 2: Convert to fraction form
128,723,044.72/177,641,285 = 69,989,653.04/x - Step 3: Cross multiply
128,723,044.72x = 177,641,285 × 69,989,653.04 - Step 4: Simplify right side
128,723,044.72x = 12,433,051,902,729,758 - Step 5: Solve for x
x = 12,433,051,902,729,758/128,723,044.72 - Step 6: Final answer
x = 96,587,615.14
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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.