Finding the Fourth Proportional to 145,720,130.96, 201,093,976.68 and 83,839,228.40
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Solution
The fourth proportional to 145,720,130.96, 201,093,976.68 and 83,839,228.40 is: 115,698,247.93
Step by Step Solution
- Step 1: Write the proportion equation
145,720,130.96 : 201,093,976.68 = 83,839,228.40 : x - Step 2: Convert to fraction form
145,720,130.96/201,093,976.68 = 83,839,228.40/x - Step 3: Cross multiply
145,720,130.96x = 201,093,976.68 × 83,839,228.40 - Step 4: Simplify right side
145,720,130.96x = 16,859,563,840,738,796 - Step 5: Solve for x
x = 16,859,563,840,738,796/145,720,130.96 - Step 6: Final answer
x = 115,698,247.93
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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.