Finding the Fourth Proportional to 13,692,991.68, 18,896,918.94 and 7,581,420
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Solution
The fourth proportional to 13,692,991.68, 18,896,918.94 and 7,581,420 is: 10,462,686.50
Step by Step Solution
- Step 1: Write the proportion equation
13,692,991.68 : 18,896,918.94 = 7,581,420 : x - Step 2: Convert to fraction form
13,692,991.68/18,896,918.94 = 7,581,420/x - Step 3: Cross multiply
13,692,991.68x = 18,896,918.94 × 7,581,420 - Step 4: Simplify right side
13,692,991.68x = 143,265,479,190,094.81 - Step 5: Solve for x
x = 143,265,479,190,094.81/13,692,991.68 - Step 6: Final answer
x = 10,462,686.50
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.