Finding the Fourth Proportional to 8,142,798.19, 11,230,834.82 and 5,531,315.84
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Solution
The fourth proportional to 8,142,798.19, 11,230,834.82 and 5,531,315.84 is: 7,628,986.14
Step by Step Solution
- Step 1: Write the proportion equation
8,142,798.19 : 11,230,834.82 = 5,531,315.84 : x - Step 2: Convert to fraction form
8,142,798.19/11,230,834.82 = 5,531,315.84/x - Step 3: Cross multiply
8,142,798.19x = 11,230,834.82 × 5,531,315.84 - Step 4: Simplify right side
8,142,798.19x = 62,121,294,536,289.55 - Step 5: Solve for x
x = 62,121,294,536,289.55/8,142,798.19 - Step 6: Final answer
x = 7,628,986.14
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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.