Finding the Fourth Proportional to 13,365,923.82, 18,444,992.70 and 7,254,353.10
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Solution
The fourth proportional to 13,365,923.82, 18,444,992.70 and 7,254,353.10 is: 10,011,016.95
Step by Step Solution
- Step 1: Write the proportion equation
13,365,923.82 : 18,444,992.70 = 7,254,353.10 : x - Step 2: Convert to fraction form
13,365,923.82/18,444,992.70 = 7,254,353.10/x - Step 3: Cross multiply
13,365,923.82x = 18,444,992.70 × 7,254,353.10 - Step 4: Simplify right side
13,365,923.82x = 133,806,489,972,722.36 - Step 5: Solve for x
x = 133,806,489,972,722.36/13,365,923.82 - Step 6: Final answer
x = 10,011,016.95
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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.