Finding the Fourth Proportional to 30,868,762.19, 46,307,378.12 and 17,920,991.03
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Solution
The fourth proportional to 30,868,762.19, 46,307,378.12 and 17,920,991.03 is: 26,883,945.09
Step by Step Solution
- Step 1: Write the proportion equation
30,868,762.19 : 46,307,378.12 = 17,920,991.03 : x - Step 2: Convert to fraction form
30,868,762.19/46,307,378.12 = 17,920,991.03/x - Step 3: Cross multiply
30,868,762.19x = 46,307,378.12 × 17,920,991.03 - Step 4: Simplify right side
30,868,762.19x = 829,874,107,590,196.38 - Step 5: Solve for x
x = 829,874,107,590,196.38/30,868,762.19 - Step 6: Final answer
x = 26,883,945.09
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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.