Finding the Fourth Proportional to 13,623,161.98, 18,804,519.15 and 8,118,263.06
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Solution
The fourth proportional to 13,623,161.98, 18,804,519.15 and 8,118,263.06 is: 11,205,917.79
Step by Step Solution
- Step 1: Write the proportion equation
13,623,161.98 : 18,804,519.15 = 8,118,263.06 : x - Step 2: Convert to fraction form
13,623,161.98/18,804,519.15 = 8,118,263.06/x - Step 3: Cross multiply
13,623,161.98x = 18,804,519.15 × 8,118,263.06 - Step 4: Simplify right side
13,623,161.98x = 152,660,033,203,223.25 - Step 5: Solve for x
x = 152,660,033,203,223.25/13,623,161.98 - Step 6: Final answer
x = 11,205,917.79
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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.