Finding the Fourth Proportional to 28,003,950.54, 38,619,769.36 and 19,196,201.70
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Solution
The fourth proportional to 28,003,950.54, 38,619,769.36 and 19,196,201.70 is: 26,473,153.54
Step by Step Solution
- Step 1: Write the proportion equation
28,003,950.54 : 38,619,769.36 = 19,196,201.70 : x - Step 2: Convert to fraction form
28,003,950.54/38,619,769.36 = 19,196,201.70/x - Step 3: Cross multiply
28,003,950.54x = 38,619,769.36 × 19,196,201.70 - Step 4: Simplify right side
28,003,950.54x = 741,352,882,242,039.88 - Step 5: Solve for x
x = 741,352,882,242,039.88/28,003,950.54 - Step 6: Final answer
x = 26,473,153.54
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.