Finding the Fourth Proportional to 13,337,696.71, 18,406,017.84 and 7,226,125.21
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Solution
The fourth proportional to 13,337,696.71, 18,406,017.84 and 7,226,125.21 is: 9,972,050.83
Step by Step Solution
- Step 1: Write the proportion equation
13,337,696.71 : 18,406,017.84 = 7,226,125.21 : x - Step 2: Convert to fraction form
13,337,696.71/18,406,017.84 = 7,226,125.21/x - Step 3: Cross multiply
13,337,696.71x = 18,406,017.84 × 7,226,125.21 - Step 4: Simplify right side
13,337,696.71x = 133,004,189,529,333.75 - Step 5: Solve for x
x = 133,004,189,529,333.75/13,337,696.71 - Step 6: Final answer
x = 9,972,050.83
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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.