Finding the Fourth Proportional to 15,004,457.93, 20,706,173.61 and 8,128,939.79
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Solution
The fourth proportional to 15,004,457.93, 20,706,173.61 and 8,128,939.79 is: 11,217,948.65
Step by Step Solution
- Step 1: Write the proportion equation
15,004,457.93 : 20,706,173.61 = 8,128,939.79 : x - Step 2: Convert to fraction form
15,004,457.93/20,706,173.61 = 8,128,939.79/x - Step 3: Cross multiply
15,004,457.93x = 20,706,173.61 × 8,128,939.79 - Step 4: Simplify right side
15,004,457.93x = 168,319,238,556,976.94 - Step 5: Solve for x
x = 168,319,238,556,976.94/15,004,457.93 - Step 6: Final answer
x = 11,217,948.65
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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.