Finding the Fourth Proportional to 13,351,798.26, 18,427,840.59 and 7,845,172.02
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Solution
The fourth proportional to 13,351,798.26, 18,427,840.59 and 7,845,172.02 is: 10,827,723.47
Step by Step Solution
- Step 1: Write the proportion equation
13,351,798.26 : 18,427,840.59 = 7,845,172.02 : x - Step 2: Convert to fraction form
13,351,798.26/18,427,840.59 = 7,845,172.02/x - Step 3: Cross multiply
13,351,798.26x = 18,427,840.59 × 7,845,172.02 - Step 4: Simplify right side
13,351,798.26x = 144,569,579,385,688.28 - Step 5: Solve for x
x = 144,569,579,385,688.28/13,351,798.26 - Step 6: Final answer
x = 10,827,723.47
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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.