Finding the Fourth Proportional to 165,788,128.80, 248,682,193.20 and 49,207,688.10
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Solution
The fourth proportional to 165,788,128.80, 248,682,193.20 and 49,207,688.10 is: 73,811,532.15
Step by Step Solution
- Step 1: Write the proportion equation
165,788,128.80 : 248,682,193.20 = 49,207,688.10 : x - Step 2: Convert to fraction form
165,788,128.80/248,682,193.20 = 49,207,688.10/x - Step 3: Cross multiply
165,788,128.80x = 248,682,193.20 × 49,207,688.10 - Step 4: Simplify right side
165,788,128.80x = 12,237,075,799,009,540 - Step 5: Solve for x
x = 12,237,075,799,009,540/165,788,128.80 - Step 6: Final answer
x = 73,811,532.15
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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.