Finding the Fourth Proportional to 13,220,317.95, 18,243,629.37 and 7,339,824.87
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Solution
The fourth proportional to 13,220,317.95, 18,243,629.37 and 7,339,824.87 is: 10,128,731.02
Step by Step Solution
- Step 1: Write the proportion equation
13,220,317.95 : 18,243,629.37 = 7,339,824.87 : x - Step 2: Convert to fraction form
13,220,317.95/18,243,629.37 = 7,339,824.87/x - Step 3: Cross multiply
13,220,317.95x = 18,243,629.37 × 7,339,824.87 - Step 4: Simplify right side
13,220,317.95x = 133,905,044,582,548.31 - Step 5: Solve for x
x = 133,905,044,582,548.31/13,220,317.95 - Step 6: Final answer
x = 10,128,731.02
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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.