Finding the Fourth Proportional to 14,638,204.36, 20,201,530.98 and 8,111,697.40
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Solution
The fourth proportional to 14,638,204.36, 20,201,530.98 and 8,111,697.40 is: 11,194,590.70
Step by Step Solution
- Step 1: Write the proportion equation
14,638,204.36 : 20,201,530.98 = 8,111,697.40 : x - Step 2: Convert to fraction form
14,638,204.36/20,201,530.98 = 8,111,697.40/x - Step 3: Cross multiply
14,638,204.36x = 20,201,530.98 × 8,111,697.40 - Step 4: Simplify right side
14,638,204.36x = 163,868,706,326,485.47 - Step 5: Solve for x
x = 163,868,706,326,485.47/14,638,204.36 - Step 6: Final answer
x = 11,194,590.70
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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.