Finding the Fourth Proportional to 13,140,804.42, 18,134,675.75 and 7,260,817.49
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Solution
The fourth proportional to 13,140,804.42, 18,134,675.75 and 7,260,817.49 is: 10,020,130.17
Step by Step Solution
- Step 1: Write the proportion equation
13,140,804.42 : 18,134,675.75 = 7,260,817.49 : x - Step 2: Convert to fraction form
13,140,804.42/18,134,675.75 = 7,260,817.49/x - Step 3: Cross multiply
13,140,804.42x = 18,134,675.75 × 7,260,817.49 - Step 4: Simplify right side
13,140,804.42x = 131,672,570,856,562.56 - Step 5: Solve for x
x = 131,672,570,856,562.56/13,140,804.42 - Step 6: Final answer
x = 10,020,130.17
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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.