Finding the Fourth Proportional to 8,214,531.69, 12,319,177.14 and 2,821,881.81
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Solution
The fourth proportional to 8,214,531.69, 12,319,177.14 and 2,821,881.81 is: 4,231,922.55
Step by Step Solution
- Step 1: Write the proportion equation
8,214,531.69 : 12,319,177.14 = 2,821,881.81 : x - Step 2: Convert to fraction form
8,214,531.69/12,319,177.14 = 2,821,881.81/x - Step 3: Cross multiply
8,214,531.69x = 12,319,177.14 × 2,821,881.81 - Step 4: Simplify right side
8,214,531.69x = 34,763,261,885,533.82 - Step 5: Solve for x
x = 34,763,261,885,533.82/8,214,531.69 - Step 6: Final answer
x = 4,231,922.55
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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.