Finding the Fourth Proportional to 14,920,640.36, 20,588,657.10 and 9,411,947.00
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Solution
The fourth proportional to 14,920,640.36, 20,588,657.10 and 9,411,947.00 is: 12,987,334.64
Step by Step Solution
- Step 1: Write the proportion equation
14,920,640.36 : 20,588,657.10 = 9,411,947.00 : x - Step 2: Convert to fraction form
14,920,640.36/20,588,657.10 = 9,411,947.00/x - Step 3: Cross multiply
14,920,640.36x = 20,588,657.10 × 9,411,947.00 - Step 4: Simplify right side
14,920,640.36x = 193,779,349,323,430.41 - Step 5: Solve for x
x = 193,779,349,323,430.41/14,920,640.36 - Step 6: Final answer
x = 12,987,334.64
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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.