Finding the Fourth Proportional to 13,837,431.06, 19,095,837.95 and 7,642,458.99
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Solution
The fourth proportional to 13,837,431.06, 19,095,837.95 and 7,642,458.99 is: 10,546,694.53
Step by Step Solution
- Step 1: Write the proportion equation
13,837,431.06 : 19,095,837.95 = 7,642,458.99 : x - Step 2: Convert to fraction form
13,837,431.06/19,095,837.95 = 7,642,458.99/x - Step 3: Cross multiply
13,837,431.06x = 19,095,837.95 × 7,642,458.99 - Step 4: Simplify right side
13,837,431.06x = 145,939,158,431,666.81 - Step 5: Solve for x
x = 145,939,158,431,666.81/13,837,431.06 - Step 6: Final answer
x = 10,546,694.53
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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.