Finding the Fourth Proportional to 165,121,317.80, 247,681,976.70 and 88,593,813.80
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Solution
The fourth proportional to 165,121,317.80, 247,681,976.70 and 88,593,813.80 is: 132,890,720.70
Step by Step Solution
- Step 1: Write the proportion equation
165,121,317.80 : 247,681,976.70 = 88,593,813.80 : x - Step 2: Convert to fraction form
165,121,317.80/247,681,976.70 = 88,593,813.80/x - Step 3: Cross multiply
165,121,317.80x = 247,681,976.70 × 88,593,813.80 - Step 4: Simplify right side
165,121,317.80x = 21,943,090,925,375,736 - Step 5: Solve for x
x = 21,943,090,925,375,736/165,121,317.80 - Step 6: Final answer
x = 132,890,720.70
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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.