Finding the Fourth Proportional to 145,720,128.96, 201,093,973.92 and 83,839,226.40
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Solution
The fourth proportional to 145,720,128.96, 201,093,973.92 and 83,839,226.40 is: 115,698,245.17
Step by Step Solution
- Step 1: Write the proportion equation
145,720,128.96 : 201,093,973.92 = 83,839,226.40 : x - Step 2: Convert to fraction form
145,720,128.96/201,093,973.92 = 83,839,226.40/x - Step 3: Cross multiply
145,720,128.96x = 201,093,973.92 × 83,839,226.40 - Step 4: Simplify right side
145,720,128.96x = 16,859,563,207,154,576 - Step 5: Solve for x
x = 16,859,563,207,154,576/145,720,128.96 - Step 6: Final answer
x = 115,698,245.17
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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.