Finding the Fourth Proportional to 13,319,813.84, 19,980,425.99 and 4,222,621.22
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Solution
The fourth proportional to 13,319,813.84, 19,980,425.99 and 4,222,621.22 is: 6,334,155.40
Step by Step Solution
- Step 1: Write the proportion equation
13,319,813.84 : 19,980,425.99 = 4,222,621.22 : x - Step 2: Convert to fraction form
13,319,813.84/19,980,425.99 = 4,222,621.22/x - Step 3: Cross multiply
13,319,813.84x = 19,980,425.99 × 4,222,621.22 - Step 4: Simplify right side
13,319,813.84x = 84,369,770,680,667.92 - Step 5: Solve for x
x = 84,369,770,680,667.92/13,319,813.84 - Step 6: Final answer
x = 6,334,155.40
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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.