Finding the Fourth Proportional to 86,961,665.10, 130,694,440.05 and 85,450,010.70
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Solution
The fourth proportional to 86,961,665.10, 130,694,440.05 and 85,450,010.70 is: 128,422,578.94
Step by Step Solution
- Step 1: Write the proportion equation
86,961,665.10 : 130,694,440.05 = 85,450,010.70 : x - Step 2: Convert to fraction form
86,961,665.10/130,694,440.05 = 85,450,010.70/x - Step 3: Cross multiply
86,961,665.10x = 130,694,440.05 × 85,450,010.70 - Step 4: Simplify right side
86,961,665.10x = 11,167,841,300,703,008 - Step 5: Solve for x
x = 11,167,841,300,703,008/86,961,665.10 - Step 6: Final answer
x = 128,422,578.94
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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.