Finding the Fourth Proportional to 13,990,911.06, 19,306,947.54 and 7,795,637.68
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Solution
The fourth proportional to 13,990,911.06, 19,306,947.54 and 7,795,637.68 is: 10,757,695.98
Step by Step Solution
- Step 1: Write the proportion equation
13,990,911.06 : 19,306,947.54 = 7,795,637.68 : x - Step 2: Convert to fraction form
13,990,911.06/19,306,947.54 = 7,795,637.68/x - Step 3: Cross multiply
13,990,911.06x = 19,306,947.54 × 7,795,637.68 - Step 4: Simplify right side
13,990,911.06x = 150,509,967,728,607.28 - Step 5: Solve for x
x = 150,509,967,728,607.28/13,990,911.06 - Step 6: Final answer
x = 10,757,695.98
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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.