Finding the Fourth Proportional to 19,725,151.80, 27,220,810.18 and 11,023,469.80
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Solution
The fourth proportional to 19,725,151.80, 27,220,810.18 and 11,023,469.80 is: 15,212,444.60
Step by Step Solution
- Step 1: Write the proportion equation
19,725,151.80 : 27,220,810.18 = 11,023,469.80 : x - Step 2: Convert to fraction form
19,725,151.80/27,220,810.18 = 11,023,469.80/x - Step 3: Cross multiply
19,725,151.80x = 27,220,810.18 × 11,023,469.80 - Step 4: Simplify right side
19,725,151.80x = 300,067,778,950,762.56 - Step 5: Solve for x
x = 300,067,778,950,762.56/19,725,151.80 - Step 6: Final answer
x = 15,212,444.60
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1.5x scale
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.