Finding the Fourth Proportional to 14,021,421.40, 21,030,163.80 and 4,437,768.70
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Solution
The fourth proportional to 14,021,421.40, 21,030,163.80 and 4,437,768.70 is: 6,656,030.08
Step by Step Solution
- Step 1: Write the proportion equation
14,021,421.40 : 21,030,163.80 = 4,437,768.70 : x - Step 2: Convert to fraction form
14,021,421.40/21,030,163.80 = 4,437,768.70/x - Step 3: Cross multiply
14,021,421.40x = 21,030,163.80 × 4,437,768.70 - Step 4: Simplify right side
14,021,421.40x = 93,327,002,667,513.06 - Step 5: Solve for x
x = 93,327,002,667,513.06/14,021,421.40 - Step 6: Final answer
x = 6,656,030.08
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.