Finding the Fourth Proportional to 69,921,817.56, 104,679,448.74 and 40,686,556.68
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Solution
The fourth proportional to 69,921,817.56, 104,679,448.74 and 40,686,556.68 is: 60,911,550.54
Step by Step Solution
- Step 1: Write the proportion equation
69,921,817.56 : 104,679,448.74 = 40,686,556.68 : x - Step 2: Convert to fraction form
69,921,817.56/104,679,448.74 = 40,686,556.68/x - Step 3: Cross multiply
69,921,817.56x = 104,679,448.74 × 40,686,556.68 - Step 4: Simplify right side
69,921,817.56x = 4,259,046,324,391,164.50 - Step 5: Solve for x
x = 4,259,046,324,391,164.50/69,921,817.56 - Step 6: Final answer
x = 60,911,550.54
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.