Finding the Fourth Proportional to 165,121,203.80, 247,681,805.70 and 88,593,699.80
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Solution
The fourth proportional to 165,121,203.80, 247,681,805.70 and 88,593,699.80 is: 132,890,549.70
Step by Step Solution
- Step 1: Write the proportion equation
165,121,203.80 : 247,681,805.70 = 88,593,699.80 : x - Step 2: Convert to fraction form
165,121,203.80/247,681,805.70 = 88,593,699.80/x - Step 3: Cross multiply
165,121,203.80x = 247,681,805.70 × 88,593,699.80 - Step 4: Simplify right side
165,121,203.80x = 21,943,047,540,107,728 - Step 5: Solve for x
x = 21,943,047,540,107,728/165,121,203.80 - Step 6: Final answer
x = 132,890,549.70
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1.5x scale
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.