Finding the Fourth Proportional to 18,139,194.95, 27,220,498.18 and 6,623,698.06
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Solution
The fourth proportional to 18,139,194.95, 27,220,498.18 and 6,623,698.06 is: 9,939,821.56
Step by Step Solution
- Step 1: Write the proportion equation
18,139,194.95 : 27,220,498.18 = 6,623,698.06 : x - Step 2: Convert to fraction form
18,139,194.95/27,220,498.18 = 6,623,698.06/x - Step 3: Cross multiply
18,139,194.95x = 27,220,498.18 × 6,623,698.06 - Step 4: Simplify right side
18,139,194.95x = 180,300,360,987,099.53 - Step 5: Solve for x
x = 180,300,360,987,099.53/18,139,194.95 - Step 6: Final answer
x = 9,939,821.56
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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.