Finding the Fourth Proportional to 165,386,438.47, 248,232,957.09 and 83,562,824.80
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Solution
The fourth proportional to 165,386,438.47, 248,232,957.09 and 83,562,824.80 is: 125,421,692.94
Step by Step Solution
- Step 1: Write the proportion equation
165,386,438.47 : 248,232,957.09 = 83,562,824.80 : x - Step 2: Convert to fraction form
165,386,438.47/248,232,957.09 = 83,562,824.80/x - Step 3: Cross multiply
165,386,438.47x = 248,232,957.09 × 83,562,824.80 - Step 4: Simplify right side
165,386,438.47x = 20,743,047,102,897,588 - Step 5: Solve for x
x = 20,743,047,102,897,588/165,386,438.47 - Step 6: Final answer
x = 125,421,692.94
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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.