Finding the Fourth Proportional to 13,775,777.47, 19,010,747.79 and 7,581,537.37
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Solution
The fourth proportional to 13,775,777.47, 19,010,747.79 and 7,581,537.37 is: 10,462,617.82
Step by Step Solution
- Step 1: Write the proportion equation
13,775,777.47 : 19,010,747.79 = 7,581,537.37 : x - Step 2: Convert to fraction form
13,775,777.47/19,010,747.79 = 7,581,537.37/x - Step 3: Cross multiply
13,775,777.47x = 19,010,747.79 × 7,581,537.37 - Step 4: Simplify right side
13,775,777.47x = 144,130,694,801,529.91 - Step 5: Solve for x
x = 144,130,694,801,529.91/13,775,777.47 - Step 6: Final answer
x = 10,462,617.82
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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.