Finding the Fourth Proportional to 13,590,651.96, 18,750,876.84 and 7,709,317.56
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Solution
The fourth proportional to 13,590,651.96, 18,750,876.84 and 7,709,317.56 is: 10,636,462.81
Step by Step Solution
- Step 1: Write the proportion equation
13,590,651.96 : 18,750,876.84 = 7,709,317.56 : x - Step 2: Convert to fraction form
13,590,651.96/18,750,876.84 = 7,709,317.56/x - Step 3: Cross multiply
13,590,651.96x = 18,750,876.84 × 7,709,317.56 - Step 4: Simplify right side
13,590,651.96x = 144,556,464,088,009.31 - Step 5: Solve for x
x = 144,556,464,088,009.31/13,590,651.96 - Step 6: Final answer
x = 10,636,462.81
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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.