Finding the Fourth Proportional to 19,483,914.80, 26,888,241.12 and 12,620,343.36
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Solution
The fourth proportional to 19,483,914.80, 26,888,241.12 and 12,620,343.36 is: 17,416,357.99
Step by Step Solution
- Step 1: Write the proportion equation
19,483,914.80 : 26,888,241.12 = 12,620,343.36 : x - Step 2: Convert to fraction form
19,483,914.80/26,888,241.12 = 12,620,343.36/x - Step 3: Cross multiply
19,483,914.80x = 26,888,241.12 × 12,620,343.36 - Step 4: Simplify right side
19,483,914.80x = 339,338,835,280,870.94 - Step 5: Solve for x
x = 339,338,835,280,870.94/19,483,914.80 - Step 6: Final answer
x = 17,416,357.99
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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.